Finding the Fourth Proportional to 1,917.16, 2,645.86 and 1,365.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917.16 : 2,645.86 = 1,365.48 : x
2. Step 2: Convert to fraction form
   1,917.16/2,645.86 = 1,365.48/x
3. Step 3: Cross multiply
   1,917.16x = 2,645.86 × 1,365.48
4. Step 4: Simplify right side
   1,917.16x = 3,612,868.91
5. Step 5: Solve for x
   x = 3,612,868.91/1,917.16
6. Step 6: Final answer
   x = 1,884.49