Finding the Fourth Proportional to 4,152.83, 6,213.87 and 3,328.61

Step by Step Solution

1. Step 1: Write the proportion equation
   4,152.83 : 6,213.87 = 3,328.61 : x
2. Step 2: Convert to fraction form
   4,152.83/6,213.87 = 3,328.61/x
3. Step 3: Cross multiply
   4,152.83x = 6,213.87 × 3,328.61
4. Step 4: Simplify right side
   4,152.83x = 20,683,549.82
5. Step 5: Solve for x
   x = 20,683,549.82/4,152.83
6. Step 6: Final answer
   x = 4,980.59