Finding the Fourth Proportional to 2,700.86, 3,727.70 and 1,521.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.86 : 3,727.70 = 1,521.93 : x
2. Step 2: Convert to fraction form
   2,700.86/3,727.70 = 1,521.93/x
3. Step 3: Cross multiply
   2,700.86x = 3,727.70 × 1,521.93
4. Step 4: Simplify right side
   2,700.86x = 5,673,290.85
5. Step 5: Solve for x
   x = 5,673,290.85/2,700.86
6. Step 6: Final answer
   x = 2,100.55