Finding the Fourth Proportional to 2,223.72, 3,068.76 and 1,228.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.72 : 3,068.76 = 1,228.98 : x
2. Step 2: Convert to fraction form
   2,223.72/3,068.76 = 1,228.98/x
3. Step 3: Cross multiply
   2,223.72x = 3,068.76 × 1,228.98
4. Step 4: Simplify right side
   2,223.72x = 3,771,444.66
5. Step 5: Solve for x
   x = 3,771,444.66/2,223.72
6. Step 6: Final answer
   x = 1,696.01