Finding the Fourth Proportional to 4,870.55, 6,719.51 and 2,773.55

Step by Step Solution

1. Step 1: Write the proportion equation
   4,870.55 : 6,719.51 = 2,773.55 : x
2. Step 2: Convert to fraction form
   4,870.55/6,719.51 = 2,773.55/x
3. Step 3: Cross multiply
   4,870.55x = 6,719.51 × 2,773.55
4. Step 4: Simplify right side
   4,870.55x = 18,636,849.50
5. Step 5: Solve for x
   x = 18,636,849.50/4,870.55
6. Step 6: Final answer
   x = 3,826.44