Finding the Fourth Proportional to 1,408.61, 2,111.25 and 1,060.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.61 : 2,111.25 = 1,060.82 : x
2. Step 2: Convert to fraction form
   1,408.61/2,111.25 = 1,060.82/x
3. Step 3: Cross multiply
   1,408.61x = 2,111.25 × 1,060.82
4. Step 4: Simplify right side
   1,408.61x = 2,239,645.67
5. Step 5: Solve for x
   x = 2,239,645.67/1,408.61
6. Step 6: Final answer
   x = 1,589.97