Finding the Fourth Proportional to 1,777.25, 2,452.52 and 1,031.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,777.25 : 2,452.52 = 1,031.15 : x
2. Step 2: Convert to fraction form
   1,777.25/2,452.52 = 1,031.15/x
3. Step 3: Cross multiply
   1,777.25x = 2,452.52 × 1,031.15
4. Step 4: Simplify right side
   1,777.25x = 2,528,906.31
5. Step 5: Solve for x
   x = 2,528,906.31/1,777.25
6. Step 6: Final answer
   x = 1,422.94