Finding the Fourth Proportional to 2,700.61, 3,726.89 and 1,505.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.61 : 3,726.89 = 1,505.70 : x
2. Step 2: Convert to fraction form
   2,700.61/3,726.89 = 1,505.70/x
3. Step 3: Cross multiply
   2,700.61x = 3,726.89 × 1,505.70
4. Step 4: Simplify right side
   2,700.61x = 5,611,578.27
5. Step 5: Solve for x
   x = 5,611,578.27/2,700.61
6. Step 6: Final answer
   x = 2,077.89