Finding the Fourth Proportional to 4,870.52, 7,307.72 and 2,405.28

Step by Step Solution

1. Step 1: Write the proportion equation
   4,870.52 : 7,307.72 = 2,405.28 : x
2. Step 2: Convert to fraction form
   4,870.52/7,307.72 = 2,405.28/x
3. Step 3: Cross multiply
   4,870.52x = 7,307.72 × 2,405.28
4. Step 4: Simplify right side
   4,870.52x = 17,577,112.76
5. Step 5: Solve for x
   x = 17,577,112.76/4,870.52
6. Step 6: Final answer
   x = 3,608.88