Finding the Fourth Proportional to 2,046.60, 2,820.42 and 1,691.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,046.60 : 2,820.42 = 1,691.28 : x
2. Step 2: Convert to fraction form
   2,046.60/2,820.42 = 1,691.28/x
3. Step 3: Cross multiply
   2,046.60x = 2,820.42 × 1,691.28
4. Step 4: Simplify right side
   2,046.60x = 4,770,119.94
5. Step 5: Solve for x
   x = 4,770,119.94/2,046.60
6. Step 6: Final answer
   x = 2,330.75