Finding the Fourth Proportional to 3,687.10, 5,531.33 and 1,054.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,687.10 : 5,531.33 = 1,054.49 : x
2. Step 2: Convert to fraction form
   3,687.10/5,531.33 = 1,054.49/x
3. Step 3: Cross multiply
   3,687.10x = 5,531.33 × 1,054.49
4. Step 4: Simplify right side
   3,687.10x = 5,832,726.90
5. Step 5: Solve for x
   x = 5,832,726.90/3,687.10
6. Step 6: Final answer
   x = 1,581.93