Finding the Fourth Proportional to 1,844.56, 2,545.33 and 1,172.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,844.56 : 2,545.33 = 1,172.31 : x
2. Step 2: Convert to fraction form
   1,844.56/2,545.33 = 1,172.31/x
3. Step 3: Cross multiply
   1,844.56x = 2,545.33 × 1,172.31
4. Step 4: Simplify right side
   1,844.56x = 2,983,915.81
5. Step 5: Solve for x
   x = 2,983,915.81/1,844.56
6. Step 6: Final answer
   x = 1,617.68