Finding the Fourth Proportional to 1,225.37, 1,690.27 and 1,068.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.37 : 1,690.27 = 1,068.39 : x
2. Step 2: Convert to fraction form
   1,225.37/1,690.27 = 1,068.39/x
3. Step 3: Cross multiply
   1,225.37x = 1,690.27 × 1,068.39
4. Step 4: Simplify right side
   1,225.37x = 1,805,864.89
5. Step 5: Solve for x
   x = 1,805,864.89/1,225.37
6. Step 6: Final answer
   x = 1,473.73