Finding the Fourth Proportional to 1,677.33, 2,314.67 and 931.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,677.33 : 2,314.67 = 931.27 : x
2. Step 2: Convert to fraction form
   1,677.33/2,314.67 = 931.27/x
3. Step 3: Cross multiply
   1,677.33x = 2,314.67 × 931.27
4. Step 4: Simplify right side
   1,677.33x = 2,155,583.39
5. Step 5: Solve for x
   x = 2,155,583.39/1,677.33
6. Step 6: Final answer
   x = 1,285.13