Finding the Fourth Proportional to 1,386,066,682.77, 2,077,701,005.61 and 868,860,329.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386,066,682.77 : 2,077,701,005.61 = 868,860,329.91 : x
2. Step 2: Convert to fraction form
   1,386,066,682.77/2,077,701,005.61 = 868,860,329.91/x
3. Step 3: Cross multiply
   1,386,066,682.77x = 2,077,701,005.61 × 868,860,329.91
4. Step 4: Simplify right side
   1,386,066,682.77x = 1,805,231,981,188,643,328
5. Step 5: Solve for x
   x = 1,805,231,981,188,643,328/1,386,066,682.77
6. Step 6: Final answer
   x = 1,302,413,515.62