Finding the Fourth Proportional to 1,731.42, 2,389.35 and 945.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,731.42 : 2,389.35 = 945.45 : x
2. Step 2: Convert to fraction form
   1,731.42/2,389.35 = 945.45/x
3. Step 3: Cross multiply
   1,731.42x = 2,389.35 × 945.45
4. Step 4: Simplify right side
   1,731.42x = 2,259,010.96
5. Step 5: Solve for x
   x = 2,259,010.96/1,731.42
6. Step 6: Final answer
   x = 1,304.72