Finding the Fourth Proportional to 1,870.75, 2,581.62 and 1,031.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.75 : 2,581.62 = 1,031.49 : x
2. Step 2: Convert to fraction form
   1,870.75/2,581.62 = 1,031.49/x
3. Step 3: Cross multiply
   1,870.75x = 2,581.62 × 1,031.49
4. Step 4: Simplify right side
   1,870.75x = 2,662,915.21
5. Step 5: Solve for x
   x = 2,662,915.21/1,870.75
6. Step 6: Final answer
   x = 1,423.45