Finding the Fourth Proportional to 1,142,863.72, 1,577,154.15 and 633,566.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142,863.72 : 1,577,154.15 = 633,566.09 : x
2. Step 2: Convert to fraction form
   1,142,863.72/1,577,154.15 = 633,566.09/x
3. Step 3: Cross multiply
   1,142,863.72x = 1,577,154.15 × 633,566.09
4. Step 4: Simplify right side
   1,142,863.72x = 999,231,388,142.77
5. Step 5: Solve for x
   x = 999,231,388,142.77/1,142,863.72
6. Step 6: Final answer
   x = 874,322.43