Finding the Fourth Proportional to 2,654.18, 3,978.38 and 1,010

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.18 : 3,978.38 = 1,010 : x
2. Step 2: Convert to fraction form
   2,654.18/3,978.38 = 1,010/x
3. Step 3: Cross multiply
   2,654.18x = 3,978.38 × 1,010
4. Step 4: Simplify right side
   2,654.18x = 4,018,163.80
5. Step 5: Solve for x
   x = 4,018,163.80/2,654.18
6. Step 6: Final answer
   x = 1,513.90