Finding the Fourth Proportional to 1,134,986.42, 1,566,270.96 and 625,688.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,134,986.42 : 1,566,270.96 = 625,688.78 : x
2. Step 2: Convert to fraction form
   1,134,986.42/1,566,270.96 = 625,688.78/x
3. Step 3: Cross multiply
   1,134,986.42x = 1,566,270.96 × 625,688.78
4. Step 4: Simplify right side
   1,134,986.42x = 979,998,166,111.83
5. Step 5: Solve for x
   x = 979,998,166,111.83/1,134,986.42
6. Step 6: Final answer
   x = 863,444.84