Finding the Fourth Proportional to 3,547.32, 5,321.94 and 1,082.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,547.32 : 5,321.94 = 1,082.40 : x
2. Step 2: Convert to fraction form
   3,547.32/5,321.94 = 1,082.40/x
3. Step 3: Cross multiply
   3,547.32x = 5,321.94 × 1,082.40
4. Step 4: Simplify right side
   3,547.32x = 5,760,467.86
5. Step 5: Solve for x
   x = 5,760,467.86/3,547.32
6. Step 6: Final answer
   x = 1,623.89