Finding the Fourth Proportional to 1,916.74, 2,644.52 and 1,170.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916.74 : 2,644.52 = 1,170.46 : x
2. Step 2: Convert to fraction form
   1,916.74/2,644.52 = 1,170.46/x
3. Step 3: Cross multiply
   1,916.74x = 2,644.52 × 1,170.46
4. Step 4: Simplify right side
   1,916.74x = 3,095,304.88
5. Step 5: Solve for x
   x = 3,095,304.88/1,916.74
6. Step 6: Final answer
   x = 1,614.88