Finding the Fourth Proportional to 2,153.52, 2,971.86 and 1,408.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.52 : 2,971.86 = 1,408.74 : x
2. Step 2: Convert to fraction form
   2,153.52/2,971.86 = 1,408.74/x
3. Step 3: Cross multiply
   2,153.52x = 2,971.86 × 1,408.74
4. Step 4: Simplify right side
   2,153.52x = 4,186,578.06
5. Step 5: Solve for x
   x = 4,186,578.06/2,153.52
6. Step 6: Final answer
   x = 1,944.06