Finding the Fourth Proportional to 1,465.79, 2,196.71 and 540.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,465.79 : 2,196.71 = 540.48 : x
2. Step 2: Convert to fraction form
   1,465.79/2,196.71 = 540.48/x
3. Step 3: Cross multiply
   1,465.79x = 2,196.71 × 540.48
4. Step 4: Simplify right side
   1,465.79x = 1,187,275.12
5. Step 5: Solve for x
   x = 1,187,275.12/1,465.79
6. Step 6: Final answer
   x = 809.99