Finding the Fourth Proportional to 1,767.06, 2,439.46 and 1,245.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.06 : 2,439.46 = 1,245.42 : x
2. Step 2: Convert to fraction form
   1,767.06/2,439.46 = 1,245.42/x
3. Step 3: Cross multiply
   1,767.06x = 2,439.46 × 1,245.42
4. Step 4: Simplify right side
   1,767.06x = 3,038,146.05
5. Step 5: Solve for x
   x = 3,038,146.05/1,767.06
6. Step 6: Final answer
   x = 1,719.32