Finding the Fourth Proportional to 2,031.61, 2,803.71 and 1,147.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.61 : 2,803.71 = 1,147.42 : x
2. Step 2: Convert to fraction form
   2,031.61/2,803.71 = 1,147.42/x
3. Step 3: Cross multiply
   2,031.61x = 2,803.71 × 1,147.42
4. Step 4: Simplify right side
   2,031.61x = 3,217,032.93
5. Step 5: Solve for x
   x = 3,217,032.93/2,031.61
6. Step 6: Final answer
   x = 1,583.49