Finding the Fourth Proportional to 1,894.20, 2,614.72 and 1,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,894.20 : 2,614.72 = 1,108.50 : x
2. Step 2: Convert to fraction form
   1,894.20/2,614.72 = 1,108.50/x
3. Step 3: Cross multiply
   1,894.20x = 2,614.72 × 1,108.50
4. Step 4: Simplify right side
   1,894.20x = 2,898,417.12
5. Step 5: Solve for x
   x = 2,898,417.12/1,894.20
6. Step 6: Final answer
   x = 1,530.15