Finding the Fourth Proportional to 2,031.91, 2,803.81 and 1,147.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.91 : 2,803.81 = 1,147.71 : x
2. Step 2: Convert to fraction form
   2,031.91/2,803.81 = 1,147.71/x
3. Step 3: Cross multiply
   2,031.91x = 2,803.81 × 1,147.71
4. Step 4: Simplify right side
   2,031.91x = 3,217,970.57
5. Step 5: Solve for x
   x = 3,217,970.57/2,031.91
6. Step 6: Final answer
   x = 1,583.72