Finding the Fourth Proportional to 1,101.42, 1,520.03 and 708.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.42 : 1,520.03 = 708.37 : x
2. Step 2: Convert to fraction form
   1,101.42/1,520.03 = 708.37/x
3. Step 3: Cross multiply
   1,101.42x = 1,520.03 × 708.37
4. Step 4: Simplify right side
   1,101.42x = 1,076,741.62
5. Step 5: Solve for x
   x = 1,076,741.62/1,101.42
6. Step 6: Final answer
   x = 977.59