Finding the Fourth Proportional to 2,199.41, 3,300.50 and 900.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,199.41 : 3,300.50 = 900.91 : x
2. Step 2: Convert to fraction form
   2,199.41/3,300.50 = 900.91/x
3. Step 3: Cross multiply
   2,199.41x = 3,300.50 × 900.91
4. Step 4: Simplify right side
   2,199.41x = 2,973,453.46
5. Step 5: Solve for x
   x = 2,973,453.46/2,199.41
6. Step 6: Final answer
   x = 1,351.93