Finding the Fourth Proportional to 1,870.47, 2,581.08 and 1,031.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.47 : 2,581.08 = 1,031.04 : x
2. Step 2: Convert to fraction form
   1,870.47/2,581.08 = 1,031.04/x
3. Step 3: Cross multiply
   1,870.47x = 2,581.08 × 1,031.04
4. Step 4: Simplify right side
   1,870.47x = 2,661,196.72
5. Step 5: Solve for x
   x = 2,661,196.72/1,870.47
6. Step 6: Final answer
   x = 1,422.74