Finding the Fourth Proportional to 2,700.86, 3,726.68 and 1,505.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.86 : 3,726.68 = 1,505.78 : x
2. Step 2: Convert to fraction form
   2,700.86/3,726.68 = 1,505.78/x
3. Step 3: Cross multiply
   2,700.86x = 3,726.68 × 1,505.78
4. Step 4: Simplify right side
   2,700.86x = 5,611,560.21
5. Step 5: Solve for x
   x = 5,611,560.21/2,700.86
6. Step 6: Final answer
   x = 2,077.69