Finding the Fourth Proportional to 1,124,870.52, 1,687,553.64 and 326,185.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,124,870.52 : 1,687,553.64 = 326,185.40 : x
2. Step 2: Convert to fraction form
   1,124,870.52/1,687,553.64 = 326,185.40/x
3. Step 3: Cross multiply
   1,124,870.52x = 1,687,553.64 × 326,185.40
4. Step 4: Simplify right side
   1,124,870.52x = 550,455,359,084.86
5. Step 5: Solve for x
   x = 550,455,359,084.86/1,124,870.52
6. Step 6: Final answer
   x = 489,349.97