Finding the Fourth Proportional to 1,870.92, 2,581.83 and 1,031.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.92 : 2,581.83 = 1,031.58 : x
2. Step 2: Convert to fraction form
   1,870.92/2,581.83 = 1,031.58/x
3. Step 3: Cross multiply
   1,870.92x = 2,581.83 × 1,031.58
4. Step 4: Simplify right side
   1,870.92x = 2,663,364.19
5. Step 5: Solve for x
   x = 2,663,364.19/1,870.92
6. Step 6: Final answer
   x = 1,423.56