Finding the Fourth Proportional to 1,145.62, 1,581.78 and 704.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.62 : 1,581.78 = 704.11 : x
2. Step 2: Convert to fraction form
   1,145.62/1,581.78 = 704.11/x
3. Step 3: Cross multiply
   1,145.62x = 1,581.78 × 704.11
4. Step 4: Simplify right side
   1,145.62x = 1,113,747.12
5. Step 5: Solve for x
   x = 1,113,747.12/1,145.62
6. Step 6: Final answer
   x = 972.18