Finding the Fourth Proportional to 2,223.01, 3,333.80 and 906.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.01 : 3,333.80 = 906.76 : x
2. Step 2: Convert to fraction form
   2,223.01/3,333.80 = 906.76/x
3. Step 3: Cross multiply
   2,223.01x = 3,333.80 × 906.76
4. Step 4: Simplify right side
   2,223.01x = 3,022,939.82
5. Step 5: Solve for x
   x = 3,022,939.82/2,223.01
6. Step 6: Final answer
   x = 1,359.84