Finding the Fourth Proportional to 1,755.98, 2,633.27 and 878.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,755.98 : 2,633.27 = 878.15 : x
2. Step 2: Convert to fraction form
   1,755.98/2,633.27 = 878.15/x
3. Step 3: Cross multiply
   1,755.98x = 2,633.27 × 878.15
4. Step 4: Simplify right side
   1,755.98x = 2,312,406.05
5. Step 5: Solve for x
   x = 2,312,406.05/1,755.98
6. Step 6: Final answer
   x = 1,316.87