Finding the Fourth Proportional to 2,907.59, 4,362.31 and 961.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,907.59 : 4,362.31 = 961.16 : x
2. Step 2: Convert to fraction form
   2,907.59/4,362.31 = 961.16/x
3. Step 3: Cross multiply
   2,907.59x = 4,362.31 × 961.16
4. Step 4: Simplify right side
   2,907.59x = 4,192,883.98
5. Step 5: Solve for x
   x = 4,192,883.98/2,907.59
6. Step 6: Final answer
   x = 1,442.05