Finding the Fourth Proportional to 2,139.57, 2,952.45 and 1,182.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.57 : 2,952.45 = 1,182.29 : x
2. Step 2: Convert to fraction form
   2,139.57/2,952.45 = 1,182.29/x
3. Step 3: Cross multiply
   2,139.57x = 2,952.45 × 1,182.29
4. Step 4: Simplify right side
   2,139.57x = 3,490,637.35
5. Step 5: Solve for x
   x = 3,490,637.35/2,139.57
6. Step 6: Final answer
   x = 1,631.47