Finding the Fourth Proportional to 1,837.92, 2,536.60 and 1,139.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,837.92 : 2,536.60 = 1,139.52 : x
2. Step 2: Convert to fraction form
   1,837.92/2,536.60 = 1,139.52/x
3. Step 3: Cross multiply
   1,837.92x = 2,536.60 × 1,139.52
4. Step 4: Simplify right side
   1,837.92x = 2,890,506.43
5. Step 5: Solve for x
   x = 2,890,506.43/1,837.92
6. Step 6: Final answer
   x = 1,572.71