Finding the Fourth Proportional to 1,038,123.36, 1,432,710.42 and 630,131.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,038,123.36 : 1,432,710.42 = 630,131.16 : x
2. Step 2: Convert to fraction form
   1,038,123.36/1,432,710.42 = 630,131.16/x
3. Step 3: Cross multiply
   1,038,123.36x = 1,432,710.42 × 630,131.16
4. Step 4: Simplify right side
   1,038,123.36x = 902,795,478,898.69
5. Step 5: Solve for x
   x = 902,795,478,898.69/1,038,123.36
6. Step 6: Final answer
   x = 869,641.81