Finding the Fourth Proportional to 2,445.30, 3,377.28 and 1,657.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,445.30 : 3,377.28 = 1,657.98 : x
2. Step 2: Convert to fraction form
   2,445.30/3,377.28 = 1,657.98/x
3. Step 3: Cross multiply
   2,445.30x = 3,377.28 × 1,657.98
4. Step 4: Simplify right side
   2,445.30x = 5,599,462.69
5. Step 5: Solve for x
   x = 5,599,462.69/2,445.30
6. Step 6: Final answer
   x = 2,289.89