Finding the Fourth Proportional to 2,602.63, 3,901.62 and 958.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.63 : 3,901.62 = 958.78 : x
2. Step 2: Convert to fraction form
   2,602.63/3,901.62 = 958.78/x
3. Step 3: Cross multiply
   2,602.63x = 3,901.62 × 958.78
4. Step 4: Simplify right side
   2,602.63x = 3,740,775.72
5. Step 5: Solve for x
   x = 3,740,775.72/2,602.63
6. Step 6: Final answer
   x = 1,437.31