Finding the Fourth Proportional to 1,111,127.61, 1,665,404.82 and 510,828.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111,127.61 : 1,665,404.82 = 510,828.91 : x
2. Step 2: Convert to fraction form
   1,111,127.61/1,665,404.82 = 510,828.91/x
3. Step 3: Cross multiply
   1,111,127.61x = 1,665,404.82 × 510,828.91
4. Step 4: Simplify right side
   1,111,127.61x = 850,736,934,113.74
5. Step 5: Solve for x
   x = 850,736,934,113.74/1,111,127.61
6. Step 6: Final answer
   x = 765,651.87