Finding the Fourth Proportional to 1,766.39, 2,651.16 and 985.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.39 : 2,651.16 = 985.24 : x
2. Step 2: Convert to fraction form
   1,766.39/2,651.16 = 985.24/x
3. Step 3: Cross multiply
   1,766.39x = 2,651.16 × 985.24
4. Step 4: Simplify right side
   1,766.39x = 2,612,035.89
5. Step 5: Solve for x
   x = 2,612,035.89/1,766.39
6. Step 6: Final answer
   x = 1,478.75