Finding the Fourth Proportional to 2,153.48, 2,971.33 and 1,408.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.48 : 2,971.33 = 1,408.52 : x
2. Step 2: Convert to fraction form
   2,153.48/2,971.33 = 1,408.52/x
3. Step 3: Cross multiply
   2,153.48x = 2,971.33 × 1,408.52
4. Step 4: Simplify right side
   2,153.48x = 4,185,181.64
5. Step 5: Solve for x
   x = 4,185,181.64/2,153.48
6. Step 6: Final answer
   x = 1,943.45