Finding the Fourth Proportional to 1,755.79, 2,632.57 and 986.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,755.79 : 2,632.57 = 986.83 : x
2. Step 2: Convert to fraction form
   1,755.79/2,632.57 = 986.83/x
3. Step 3: Cross multiply
   1,755.79x = 2,632.57 × 986.83
4. Step 4: Simplify right side
   1,755.79x = 2,597,899.05
5. Step 5: Solve for x
   x = 2,597,899.05/1,755.79
6. Step 6: Final answer
   x = 1,479.62