Finding the Fourth Proportional to 2,978.58, 4,459.65 and 1,510.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.58 : 4,459.65 = 1,510.56 : x
2. Step 2: Convert to fraction form
   2,978.58/4,459.65 = 1,510.56/x
3. Step 3: Cross multiply
   2,978.58x = 4,459.65 × 1,510.56
4. Step 4: Simplify right side
   2,978.58x = 6,736,568.90
5. Step 5: Solve for x
   x = 6,736,568.90/2,978.58
6. Step 6: Final answer
   x = 2,261.67