Finding the Fourth Proportional to 3,820.34, 5,720.79 and 2,517.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.34 : 5,720.79 = 2,517.86 : x
2. Step 2: Convert to fraction form
   3,820.34/5,720.79 = 2,517.86/x
3. Step 3: Cross multiply
   3,820.34x = 5,720.79 × 2,517.86
4. Step 4: Simplify right side
   3,820.34x = 14,404,148.31
5. Step 5: Solve for x
   x = 14,404,148.31/3,820.34
6. Step 6: Final answer
   x = 3,770.38