Finding the Fourth Proportional to 1,101.18, 1,520.58 and 703.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.18 : 1,520.58 = 703.59 : x
2. Step 2: Convert to fraction form
   1,101.18/1,520.58 = 703.59/x
3. Step 3: Cross multiply
   1,101.18x = 1,520.58 × 703.59
4. Step 4: Simplify right side
   1,101.18x = 1,069,864.88
5. Step 5: Solve for x
   x = 1,069,864.88/1,101.18
6. Step 6: Final answer
   x = 971.56