Finding the Fourth Proportional to 3,507.42, 5,256.12 and 2,575.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,507.42 : 5,256.12 = 2,575.67 : x
2. Step 2: Convert to fraction form
   3,507.42/5,256.12 = 2,575.67/x
3. Step 3: Cross multiply
   3,507.42x = 5,256.12 × 2,575.67
4. Step 4: Simplify right side
   3,507.42x = 13,538,030.60
5. Step 5: Solve for x
   x = 13,538,030.60/3,507.42
6. Step 6: Final answer
   x = 3,859.83