Finding the Fourth Proportional to 1,111,437.61, 1,533,791.27 and 602,139.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111,437.61 : 1,533,791.27 = 602,139.98 : x
2. Step 2: Convert to fraction form
   1,111,437.61/1,533,791.27 = 602,139.98/x
3. Step 3: Cross multiply
   1,111,437.61x = 1,533,791.27 × 602,139.98
4. Step 4: Simplify right side
   1,111,437.61x = 923,557,049,981.80
5. Step 5: Solve for x
   x = 923,557,049,981.80/1,111,437.61
6. Step 6: Final answer
   x = 830,957.17