Finding the Fourth Proportional to 2,978.90, 4,110.72 and 1,652.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.90 : 4,110.72 = 1,652.60 : x
2. Step 2: Convert to fraction form
   2,978.90/4,110.72 = 1,652.60/x
3. Step 3: Cross multiply
   2,978.90x = 4,110.72 × 1,652.60
4. Step 4: Simplify right side
   2,978.90x = 6,793,355.32
5. Step 5: Solve for x
   x = 6,793,355.32/2,978.90
6. Step 6: Final answer
   x = 2,280.50