Finding the Fourth Proportional to 1,223.80, 1,834.06 and 1,093.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223.80 : 1,834.06 = 1,093.64 : x
2. Step 2: Convert to fraction form
   1,223.80/1,834.06 = 1,093.64/x
3. Step 3: Cross multiply
   1,223.80x = 1,834.06 × 1,093.64
4. Step 4: Simplify right side
   1,223.80x = 2,005,801.38
5. Step 5: Solve for x
   x = 2,005,801.38/1,223.80
6. Step 6: Final answer
   x = 1,638.99