Finding the Fourth Proportional to 1,098,288, 1,515,662.72 and 614,840.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098,288 : 1,515,662.72 = 614,840.96 : x
2. Step 2: Convert to fraction form
   1,098,288/1,515,662.72 = 614,840.96/x
3. Step 3: Cross multiply
   1,098,288x = 1,515,662.72 × 614,840.96
4. Step 4: Simplify right side
   1,098,288x = 931,891,521,801.01
5. Step 5: Solve for x
   x = 931,891,521,801.01/1,098,288
6. Step 6: Final answer
   x = 848,494.68