Finding the Fourth Proportional to 1,465.72, 2,196.64 and 878.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,465.72 : 2,196.64 = 878.83 : x
2. Step 2: Convert to fraction form
   1,465.72/2,196.64 = 878.83/x
3. Step 3: Cross multiply
   1,465.72x = 2,196.64 × 878.83
4. Step 4: Simplify right side
   1,465.72x = 1,930,473.13
5. Step 5: Solve for x
   x = 1,930,473.13/1,465.72
6. Step 6: Final answer
   x = 1,317.08