Finding the Fourth Proportional to 1,623,665.61, 2,240,603.42 and 898,543.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,623,665.61 : 2,240,603.42 = 898,543.89 : x
2. Step 2: Convert to fraction form
   1,623,665.61/2,240,603.42 = 898,543.89/x
3. Step 3: Cross multiply
   1,623,665.61x = 2,240,603.42 × 898,543.89
4. Step 4: Simplify right side
   1,623,665.61x = 2,013,280,508,461.38
5. Step 5: Solve for x
   x = 2,013,280,508,461.38/1,623,665.61
6. Step 6: Final answer
   x = 1,239,960.06