Finding the Fourth Proportional to 2,223.16, 3,068.58 and 1,291.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.16 : 3,068.58 = 1,291.84 : x
2. Step 2: Convert to fraction form
   2,223.16/3,068.58 = 1,291.84/x
3. Step 3: Cross multiply
   2,223.16x = 3,068.58 × 1,291.84
4. Step 4: Simplify right side
   2,223.16x = 3,964,114.39
5. Step 5: Solve for x
   x = 3,964,114.39/2,223.16
6. Step 6: Final answer
   x = 1,783.10