Finding the Fourth Proportional to 2,132.42, 2,940.71 and 1,385.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.42 : 2,940.71 = 1,385.52 : x
2. Step 2: Convert to fraction form
   2,132.42/2,940.71 = 1,385.52/x
3. Step 3: Cross multiply
   2,132.42x = 2,940.71 × 1,385.52
4. Step 4: Simplify right side
   2,132.42x = 4,074,405.59
5. Step 5: Solve for x
   x = 4,074,405.59/2,132.42
6. Step 6: Final answer
   x = 1,910.70