Finding the Fourth Proportional to 2,978.60, 4,110.72 and 1,652.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.60 : 4,110.72 = 1,652.72 : x
2. Step 2: Convert to fraction form
   2,978.60/4,110.72 = 1,652.72/x
3. Step 3: Cross multiply
   2,978.60x = 4,110.72 × 1,652.72
4. Step 4: Simplify right side
   2,978.60x = 6,793,869.16
5. Step 5: Solve for x
   x = 6,793,869.16/2,978.60
6. Step 6: Final answer
   x = 2,280.89