Finding the Fourth Proportional to 1,917.73, 2,646.41 and 1,066.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917.73 : 2,646.41 = 1,066.96 : x
2. Step 2: Convert to fraction form
   1,917.73/2,646.41 = 1,066.96/x
3. Step 3: Cross multiply
   1,917.73x = 2,646.41 × 1,066.96
4. Step 4: Simplify right side
   1,917.73x = 2,823,613.61
5. Step 5: Solve for x
   x = 2,823,613.61/1,917.73
6. Step 6: Final answer
   x = 1,472.37