Finding the Fourth Proportional to 5,705.43, 7,870.55 and 3,610.77

Step by Step Solution

1. Step 1: Write the proportion equation
   5,705.43 : 7,870.55 = 3,610.77 : x
2. Step 2: Convert to fraction form
   5,705.43/7,870.55 = 3,610.77/x
3. Step 3: Cross multiply
   5,705.43x = 7,870.55 × 3,610.77
4. Step 4: Simplify right side
   5,705.43x = 28,418,727.77
5. Step 5: Solve for x
   x = 28,418,727.77/5,705.43
6. Step 6: Final answer
   x = 4,981.00