Finding the Fourth Proportional to 2,146,031.86, 2,961,781.42 and 1,287,064.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146,031.86 : 2,961,781.42 = 1,287,064.66 : x
2. Step 2: Convert to fraction form
   2,146,031.86/2,961,781.42 = 1,287,064.66/x
3. Step 3: Cross multiply
   2,146,031.86x = 2,961,781.42 × 1,287,064.66
4. Step 4: Simplify right side
   2,146,031.86x = 3,812,004,196,326.62
5. Step 5: Solve for x
   x = 3,812,004,196,326.62/2,146,031.86
6. Step 6: Final answer
   x = 1,776,303.64