Finding the Fourth Proportional to 2,287.78, 3,429.84 and 901.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.78 : 3,429.84 = 901.46 : x
2. Step 2: Convert to fraction form
   2,287.78/3,429.84 = 901.46/x
3. Step 3: Cross multiply
   2,287.78x = 3,429.84 × 901.46
4. Step 4: Simplify right side
   2,287.78x = 3,091,863.57
5. Step 5: Solve for x
   x = 3,091,863.57/2,287.78
6. Step 6: Final answer
   x = 1,351.47