Finding the Fourth Proportional to 2,436.48, 3,655.20 and 975.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,436.48 : 3,655.20 = 975.72 : x
2. Step 2: Convert to fraction form
   2,436.48/3,655.20 = 975.72/x
3. Step 3: Cross multiply
   2,436.48x = 3,655.20 × 975.72
4. Step 4: Simplify right side
   2,436.48x = 3,566,451.74
5. Step 5: Solve for x
   x = 3,566,451.74/2,436.48
6. Step 6: Final answer
   x = 1,463.77