Finding the Fourth Proportional to 2,662.32, 3,993.52 and 907.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.32 : 3,993.52 = 907.36 : x
2. Step 2: Convert to fraction form
   2,662.32/3,993.52 = 907.36/x
3. Step 3: Cross multiply
   2,662.32x = 3,993.52 × 907.36
4. Step 4: Simplify right side
   2,662.32x = 3,623,560.31
5. Step 5: Solve for x
   x = 3,623,560.31/2,662.32
6. Step 6: Final answer
   x = 1,361.05