Finding the Fourth Proportional to 2,139.41, 3,209.63 and 1,043.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.41 : 3,209.63 = 1,043.52 : x
2. Step 2: Convert to fraction form
   2,139.41/3,209.63 = 1,043.52/x
3. Step 3: Cross multiply
   2,139.41x = 3,209.63 × 1,043.52
4. Step 4: Simplify right side
   2,139.41x = 3,349,313.10
5. Step 5: Solve for x
   x = 3,349,313.10/2,139.41
6. Step 6: Final answer
   x = 1,565.53