Finding the Fourth Proportional to 2,111.54, 3,151.28 and 2,062.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.54 : 3,151.28 = 2,062.40 : x
2. Step 2: Convert to fraction form
   2,111.54/3,151.28 = 2,062.40/x
3. Step 3: Cross multiply
   2,111.54x = 3,151.28 × 2,062.40
4. Step 4: Simplify right side
   2,111.54x = 6,499,199.87
5. Step 5: Solve for x
   x = 6,499,199.87/2,111.54
6. Step 6: Final answer
   x = 3,077.94