Finding the Fourth Proportional to 2,223.71, 3,333.76 and 926.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.71 : 3,333.76 = 926.15 : x
2. Step 2: Convert to fraction form
   2,223.71/3,333.76 = 926.15/x
3. Step 3: Cross multiply
   2,223.71x = 3,333.76 × 926.15
4. Step 4: Simplify right side
   2,223.71x = 3,087,561.82
5. Step 5: Solve for x
   x = 3,087,561.82/2,223.71
6. Step 6: Final answer
   x = 1,388.47