Finding the Fourth Proportional to 2,031.25, 2,803.12 and 1,147.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.25 : 2,803.12 = 1,147.04 : x
2. Step 2: Convert to fraction form
   2,031.25/2,803.12 = 1,147.04/x
3. Step 3: Cross multiply
   2,031.25x = 2,803.12 × 1,147.04
4. Step 4: Simplify right side
   2,031.25x = 3,215,271.01
5. Step 5: Solve for x
   x = 3,215,271.01/2,031.25
6. Step 6: Final answer
   x = 1,582.91