Finding the Fourth Proportional to 2,200.07, 3,300.39 and 901.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.07 : 3,300.39 = 901.23 : x
2. Step 2: Convert to fraction form
   2,200.07/3,300.39 = 901.23/x
3. Step 3: Cross multiply
   2,200.07x = 3,300.39 × 901.23
4. Step 4: Simplify right side
   2,200.07x = 2,974,410.48
5. Step 5: Solve for x
   x = 2,974,410.48/2,200.07
6. Step 6: Final answer
   x = 1,351.96