Finding the Fourth Proportional to 2,606.86, 3,907.88 and 962.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.86 : 3,907.88 = 962.16 : x
2. Step 2: Convert to fraction form
   2,606.86/3,907.88 = 962.16/x
3. Step 3: Cross multiply
   2,606.86x = 3,907.88 × 962.16
4. Step 4: Simplify right side
   2,606.86x = 3,760,005.82
5. Step 5: Solve for x
   x = 3,760,005.82/2,606.86
6. Step 6: Final answer
   x = 1,442.35