Finding the Fourth Proportional to 2,345.55, 3,518.54 and 958.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.55 : 3,518.54 = 958.98 : x
2. Step 2: Convert to fraction form
   2,345.55/3,518.54 = 958.98/x
3. Step 3: Cross multiply
   2,345.55x = 3,518.54 × 958.98
4. Step 4: Simplify right side
   2,345.55x = 3,374,204.69
5. Step 5: Solve for x
   x = 3,374,204.69/2,345.55
6. Step 6: Final answer
   x = 1,438.56