Finding the Fourth Proportional to 1,738.17, 2,399.40 and 1,214.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,738.17 : 2,399.40 = 1,214.55 : x
2. Step 2: Convert to fraction form
   1,738.17/2,399.40 = 1,214.55/x
3. Step 3: Cross multiply
   1,738.17x = 2,399.40 × 1,214.55
4. Step 4: Simplify right side
   1,738.17x = 2,914,191.27
5. Step 5: Solve for x
   x = 2,914,191.27/1,738.17
6. Step 6: Final answer
   x = 1,676.59