Finding the Fourth Proportional to 1,776.71, 2,451.85 and 1,031.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776.71 : 2,451.85 = 1,031.10 : x
2. Step 2: Convert to fraction form
   1,776.71/2,451.85 = 1,031.10/x
3. Step 3: Cross multiply
   1,776.71x = 2,451.85 × 1,031.10
4. Step 4: Simplify right side
   1,776.71x = 2,528,102.54
5. Step 5: Solve for x
   x = 2,528,102.54/1,776.71
6. Step 6: Final answer
   x = 1,422.91