Finding the Fourth Proportional to 1,635.72, 2,256.37 and 1,037.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.72 : 2,256.37 = 1,037.13 : x
2. Step 2: Convert to fraction form
   1,635.72/2,256.37 = 1,037.13/x
3. Step 3: Cross multiply
   1,635.72x = 2,256.37 × 1,037.13
4. Step 4: Simplify right side
   1,635.72x = 2,340,149.02
5. Step 5: Solve for x
   x = 2,340,149.02/1,635.72
6. Step 6: Final answer
   x = 1,430.65