Finding the Fourth Proportional to 1,895.30, 2,614.82 and 1,138.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,895.30 : 2,614.82 = 1,138.79 : x
2. Step 2: Convert to fraction form
   1,895.30/2,614.82 = 1,138.79/x
3. Step 3: Cross multiply
   1,895.30x = 2,614.82 × 1,138.79
4. Step 4: Simplify right side
   1,895.30x = 2,977,712.10
5. Step 5: Solve for x
   x = 2,977,712.10/1,895.30
6. Step 6: Final answer
   x = 1,571.11