Finding the Fourth Proportional to 1,917.45, 2,644.43 and 1,497.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917.45 : 2,644.43 = 1,497.15 : x
2. Step 2: Convert to fraction form
   1,917.45/2,644.43 = 1,497.15/x
3. Step 3: Cross multiply
   1,917.45x = 2,644.43 × 1,497.15
4. Step 4: Simplify right side
   1,917.45x = 3,959,100.89
5. Step 5: Solve for x
   x = 3,959,100.89/1,917.45
6. Step 6: Final answer
   x = 2,064.77