Finding the Fourth Proportional to 2,602.06, 3,902.72 and 958.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.06 : 3,902.72 = 958.60 : x
2. Step 2: Convert to fraction form
   2,602.06/3,902.72 = 958.60/x
3. Step 3: Cross multiply
   2,602.06x = 3,902.72 × 958.60
4. Step 4: Simplify right side
   2,602.06x = 3,741,147.48
5. Step 5: Solve for x
   x = 3,741,147.48/2,602.06
6. Step 6: Final answer
   x = 1,437.77