Finding the Fourth Proportional to 2,111.95, 2,913.33 and 1,447.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.95 : 2,913.33 = 1,447.75 : x
2. Step 2: Convert to fraction form
   2,111.95/2,913.33 = 1,447.75/x
3. Step 3: Cross multiply
   2,111.95x = 2,913.33 × 1,447.75
4. Step 4: Simplify right side
   2,111.95x = 4,217,773.51
5. Step 5: Solve for x
   x = 4,217,773.51/2,111.95
6. Step 6: Final answer
   x = 1,997.10