Finding the Fourth Proportional to 1,837.52, 2,536.52 and 1,139.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,837.52 : 2,536.52 = 1,139.28 : x
2. Step 2: Convert to fraction form
   1,837.52/2,536.52 = 1,139.28/x
3. Step 3: Cross multiply
   1,837.52x = 2,536.52 × 1,139.28
4. Step 4: Simplify right side
   1,837.52x = 2,889,806.51
5. Step 5: Solve for x
   x = 2,889,806.51/1,837.52
6. Step 6: Final answer
   x = 1,572.67