Finding the Fourth Proportional to 1,917.27, 2,872.71 and 1,845.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917.27 : 2,872.71 = 1,845.27 : x
2. Step 2: Convert to fraction form
   1,917.27/2,872.71 = 1,845.27/x
3. Step 3: Cross multiply
   1,917.27x = 2,872.71 × 1,845.27
4. Step 4: Simplify right side
   1,917.27x = 5,300,925.58
5. Step 5: Solve for x
   x = 5,300,925.58/1,917.27
6. Step 6: Final answer
   x = 2,764.83