Finding the Fourth Proportional to 5,077.35, 7,616.52 and 1,379.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,077.35 : 7,616.52 = 1,379.61 : x
2. Step 2: Convert to fraction form
   5,077.35/7,616.52 = 1,379.61/x
3. Step 3: Cross multiply
   5,077.35x = 7,616.52 × 1,379.61
4. Step 4: Simplify right side
   5,077.35x = 10,507,827.16
5. Step 5: Solve for x
   x = 10,507,827.16/5,077.35
6. Step 6: Final answer
   x = 2,069.55