Finding the Fourth Proportional to 2,128.52, 2,937.36 and 1,244.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.52 : 2,937.36 = 1,244.34 : x
2. Step 2: Convert to fraction form
   2,128.52/2,937.36 = 1,244.34/x
3. Step 3: Cross multiply
   2,128.52x = 2,937.36 × 1,244.34
4. Step 4: Simplify right side
   2,128.52x = 3,655,059.86
5. Step 5: Solve for x
   x = 3,655,059.86/2,128.52
6. Step 6: Final answer
   x = 1,717.19