Finding the Fourth Proportional to 2,093.30, 2,889.24 and 1,385.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.30 : 2,889.24 = 1,385.28 : x
2. Step 2: Convert to fraction form
   2,093.30/2,889.24 = 1,385.28/x
3. Step 3: Cross multiply
   2,093.30x = 2,889.24 × 1,385.28
4. Step 4: Simplify right side
   2,093.30x = 4,002,406.39
5. Step 5: Solve for x
   x = 4,002,406.39/2,093.30
6. Step 6: Final answer
   x = 1,912.01