Finding the Fourth Proportional to 3,608.60, 4,980.37 and 2,117

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608.60 : 4,980.37 = 2,117 : x
2. Step 2: Convert to fraction form
   3,608.60/4,980.37 = 2,117/x
3. Step 3: Cross multiply
   3,608.60x = 4,980.37 × 2,117
4. Step 4: Simplify right side
   3,608.60x = 10,543,443.29
5. Step 5: Solve for x
   x = 10,543,443.29/3,608.60
6. Step 6: Final answer
   x = 2,921.75