Finding the Fourth Proportional to 2,978.33, 4,101.68 and 2,476.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.33 : 4,101.68 = 2,476.40 : x
2. Step 2: Convert to fraction form
   2,978.33/4,101.68 = 2,476.40/x
3. Step 3: Cross multiply
   2,978.33x = 4,101.68 × 2,476.40
4. Step 4: Simplify right side
   2,978.33x = 10,157,367.46
5. Step 5: Solve for x
   x = 10,157,367.46/2,978.33
6. Step 6: Final answer
   x = 3,410.43