Finding the Fourth Proportional to 4,830.78, 6,662.67 and 3,152.70

Step by Step Solution

1. Step 1: Write the proportion equation
   4,830.78 : 6,662.67 = 3,152.70 : x
2. Step 2: Convert to fraction form
   4,830.78/6,662.67 = 3,152.70/x
3. Step 3: Cross multiply
   4,830.78x = 6,662.67 × 3,152.70
4. Step 4: Simplify right side
   4,830.78x = 21,005,399.71
5. Step 5: Solve for x
   x = 21,005,399.71/4,830.78
6. Step 6: Final answer
   x = 4,348.24