Finding the Fourth Proportional to 2,679.69, 3,697.98 and 1,500.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,679.69 : 3,697.98 = 1,500.78 : x
2. Step 2: Convert to fraction form
   2,679.69/3,697.98 = 1,500.78/x
3. Step 3: Cross multiply
   2,679.69x = 3,697.98 × 1,500.78
4. Step 4: Simplify right side
   2,679.69x = 5,549,854.42
5. Step 5: Solve for x
   x = 5,549,854.42/2,679.69
6. Step 6: Final answer
   x = 2,071.08