Finding the Fourth Proportional to 2,128,272.52, 2,936,775.54 and 1,223,146.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,272.52 : 2,936,775.54 = 1,223,146.12 : x
2. Step 2: Convert to fraction form
   2,128,272.52/2,936,775.54 = 1,223,146.12/x
3. Step 3: Cross multiply
   2,128,272.52x = 2,936,775.54 × 1,223,146.12
4. Step 4: Simplify right side
   2,128,272.52x = 3,592,105,607,061.91
5. Step 5: Solve for x
   x = 3,592,105,607,061.91/2,128,272.52
6. Step 6: Final answer
   x = 1,687,803.41