Finding the Fourth Proportional to 2,605.90, 3,907.89 and 962.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.90 : 3,907.89 = 962.02 : x
2. Step 2: Convert to fraction form
   2,605.90/3,907.89 = 962.02/x
3. Step 3: Cross multiply
   2,605.90x = 3,907.89 × 962.02
4. Step 4: Simplify right side
   2,605.90x = 3,759,468.34
5. Step 5: Solve for x
   x = 3,759,468.34/2,605.90
6. Step 6: Final answer
   x = 1,442.68