Finding the Fourth Proportional to 2,132.38, 2,942.72 and 1,248.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.38 : 2,942.72 = 1,248.13 : x
2. Step 2: Convert to fraction form
   2,132.38/2,942.72 = 1,248.13/x
3. Step 3: Cross multiply
   2,132.38x = 2,942.72 × 1,248.13
4. Step 4: Simplify right side
   2,132.38x = 3,672,897.11
5. Step 5: Solve for x
   x = 3,672,897.11/2,132.38
6. Step 6: Final answer
   x = 1,722.44