Finding the Fourth Proportional to 2,223.30, 3,069.36 and 1,384.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.30 : 3,069.36 = 1,384.74 : x
2. Step 2: Convert to fraction form
   2,223.30/3,069.36 = 1,384.74/x
3. Step 3: Cross multiply
   2,223.30x = 3,069.36 × 1,384.74
4. Step 4: Simplify right side
   2,223.30x = 4,250,265.57
5. Step 5: Solve for x
   x = 4,250,265.57/2,223.30
6. Step 6: Final answer
   x = 1,911.69