Finding the Fourth Proportional to 1,150,088.71, 1,587,128.85 and 666,940.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,088.71 : 1,587,128.85 = 666,940.62 : x
2. Step 2: Convert to fraction form
   1,150,088.71/1,587,128.85 = 666,940.62/x
3. Step 3: Cross multiply
   1,150,088.71x = 1,587,128.85 × 666,940.62
4. Step 4: Simplify right side
   1,150,088.71x = 1,058,520,699,238.89
5. Step 5: Solve for x
   x = 1,058,520,699,238.89/1,150,088.71
6. Step 6: Final answer
   x = 920,381.78