Finding the Fourth Proportional to 1,839.72, 2,538.60 and 1,043.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839.72 : 2,538.60 = 1,043.04 : x
2. Step 2: Convert to fraction form
   1,839.72/2,538.60 = 1,043.04/x
3. Step 3: Cross multiply
   1,839.72x = 2,538.60 × 1,043.04
4. Step 4: Simplify right side
   1,839.72x = 2,647,861.34
5. Step 5: Solve for x
   x = 2,647,861.34/1,839.72
6. Step 6: Final answer
   x = 1,439.27