Finding the Fourth Proportional to 1,677.83, 2,315.52 and 931.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,677.83 : 2,315.52 = 931.82 : x
2. Step 2: Convert to fraction form
   1,677.83/2,315.52 = 931.82/x
3. Step 3: Cross multiply
   1,677.83x = 2,315.52 × 931.82
4. Step 4: Simplify right side
   1,677.83x = 2,157,647.85
5. Step 5: Solve for x
   x = 2,157,647.85/1,677.83
6. Step 6: Final answer
   x = 1,285.98