Finding the Fourth Proportional to 1,145.32, 1,581.10 and 703.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.32 : 1,581.10 = 703.32 : x
2. Step 2: Convert to fraction form
   1,145.32/1,581.10 = 703.32/x
3. Step 3: Cross multiply
   1,145.32x = 1,581.10 × 703.32
4. Step 4: Simplify right side
   1,145.32x = 1,112,019.25
5. Step 5: Solve for x
   x = 1,112,019.25/1,145.32
6. Step 6: Final answer
   x = 970.92