Finding the Fourth Proportional to 2,685.08, 3,702.60 and 2,624.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.08 : 3,702.60 = 2,624.72 : x
2. Step 2: Convert to fraction form
   2,685.08/3,702.60 = 2,624.72/x
3. Step 3: Cross multiply
   2,685.08x = 3,702.60 × 2,624.72
4. Step 4: Simplify right side
   2,685.08x = 9,718,288.27
5. Step 5: Solve for x
   x = 9,718,288.27/2,685.08
6. Step 6: Final answer
   x = 3,619.37