Finding the Fourth Proportional to 2,223.90, 3,333.69 and 924.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.90 : 3,333.69 = 924.12 : x
2. Step 2: Convert to fraction form
   2,223.90/3,333.69 = 924.12/x
3. Step 3: Cross multiply
   2,223.90x = 3,333.69 × 924.12
4. Step 4: Simplify right side
   2,223.90x = 3,080,729.60
5. Step 5: Solve for x
   x = 3,080,729.60/2,223.90
6. Step 6: Final answer
   x = 1,385.28