Finding the Fourth Proportional to 1,657.18, 2,495.64 and 1,443.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,657.18 : 2,495.64 = 1,443.34 : x
2. Step 2: Convert to fraction form
   1,657.18/2,495.64 = 1,443.34/x
3. Step 3: Cross multiply
   1,657.18x = 2,495.64 × 1,443.34
4. Step 4: Simplify right side
   1,657.18x = 3,602,049.82
5. Step 5: Solve for x
   x = 3,602,049.82/1,657.18
6. Step 6: Final answer
   x = 2,173.60