Finding the Fourth Proportional to 1,745.72, 2,407.80 and 1,641.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,745.72 : 2,407.80 = 1,641.26 : x
2. Step 2: Convert to fraction form
   1,745.72/2,407.80 = 1,641.26/x
3. Step 3: Cross multiply
   1,745.72x = 2,407.80 × 1,641.26
4. Step 4: Simplify right side
   1,745.72x = 3,951,825.83
5. Step 5: Solve for x
   x = 3,951,825.83/1,745.72
6. Step 6: Final answer
   x = 2,263.72