Finding the Fourth Proportional to 1,691.43, 2,336.46 and 1,274.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691.43 : 2,336.46 = 1,274.94 : x
2. Step 2: Convert to fraction form
   1,691.43/2,336.46 = 1,274.94/x
3. Step 3: Cross multiply
   1,691.43x = 2,336.46 × 1,274.94
4. Step 4: Simplify right side
   1,691.43x = 2,978,846.31
5. Step 5: Solve for x
   x = 2,978,846.31/1,691.43
6. Step 6: Final answer
   x = 1,761.14