Finding the Fourth Proportional to 1,870.46, 2,581.22 and 1,031.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.46 : 2,581.22 = 1,031.17 : x
2. Step 2: Convert to fraction form
   1,870.46/2,581.22 = 1,031.17/x
3. Step 3: Cross multiply
   1,870.46x = 2,581.22 × 1,031.17
4. Step 4: Simplify right side
   1,870.46x = 2,661,672.75
5. Step 5: Solve for x
   x = 2,661,672.75/1,870.46
6. Step 6: Final answer
   x = 1,423.00