Finding the Fourth Proportional to 1,123,911.72, 1,550,997.32 and 614,613.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,911.72 : 1,550,997.32 = 614,613.96 : x
2. Step 2: Convert to fraction form
   1,123,911.72/1,550,997.32 = 614,613.96/x
3. Step 3: Cross multiply
   1,123,911.72x = 1,550,997.32 × 614,613.96
4. Step 4: Simplify right side
   1,123,911.72x = 953,264,601,721.52
5. Step 5: Solve for x
   x = 953,264,601,721.52/1,123,911.72
6. Step 6: Final answer
   x = 848,166.80