Finding the Fourth Proportional to 1,677.27, 2,314.58 and 931.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,677.27 : 2,314.58 = 931.25 : x
2. Step 2: Convert to fraction form
   1,677.27/2,314.58 = 931.25/x
3. Step 3: Cross multiply
   1,677.27x = 2,314.58 × 931.25
4. Step 4: Simplify right side
   1,677.27x = 2,155,452.63
5. Step 5: Solve for x
   x = 2,155,452.63/1,677.27
6. Step 6: Final answer
   x = 1,285.10