Finding the Fourth Proportional to 2,334.42, 3,500.55 and 872.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,334.42 : 3,500.55 = 872.64 : x
2. Step 2: Convert to fraction form
   2,334.42/3,500.55 = 872.64/x
3. Step 3: Cross multiply
   2,334.42x = 3,500.55 × 872.64
4. Step 4: Simplify right side
   2,334.42x = 3,054,719.95
5. Step 5: Solve for x
   x = 3,054,719.95/2,334.42
6. Step 6: Final answer
   x = 1,308.56