Finding the Fourth Proportional to 1,118.56, 1,543.50 and 653.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.56 : 1,543.50 = 653.08 : x
2. Step 2: Convert to fraction form
   1,118.56/1,543.50 = 653.08/x
3. Step 3: Cross multiply
   1,118.56x = 1,543.50 × 653.08
4. Step 4: Simplify right side
   1,118.56x = 1,008,028.98
5. Step 5: Solve for x
   x = 1,008,028.98/1,118.56
6. Step 6: Final answer
   x = 901.18