Finding the Fourth Proportional to 3,518.72, 5,279.90 and 2,552.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,518.72 : 5,279.90 = 2,552.79 : x
2. Step 2: Convert to fraction form
   3,518.72/5,279.90 = 2,552.79/x
3. Step 3: Cross multiply
   3,518.72x = 5,279.90 × 2,552.79
4. Step 4: Simplify right side
   3,518.72x = 13,478,463.16
5. Step 5: Solve for x
   x = 13,478,463.16/3,518.72
6. Step 6: Final answer
   x = 3,830.51