Finding the Fourth Proportional to 1,047.11, 1,561.41 and 1,037.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.11 : 1,561.41 = 1,037.72 : x
2. Step 2: Convert to fraction form
   1,047.11/1,561.41 = 1,037.72/x
3. Step 3: Cross multiply
   1,047.11x = 1,561.41 × 1,037.72
4. Step 4: Simplify right side
   1,047.11x = 1,620,301.20
5. Step 5: Solve for x
   x = 1,620,301.20/1,047.11
6. Step 6: Final answer
   x = 1,547.41