Finding the Fourth Proportional to 1,894.42, 2,613.90 and 1,108.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,894.42 : 2,613.90 = 1,108.31 : x
2. Step 2: Convert to fraction form
   1,894.42/2,613.90 = 1,108.31/x
3. Step 3: Cross multiply
   1,894.42x = 2,613.90 × 1,108.31
4. Step 4: Simplify right side
   1,894.42x = 2,897,011.51
5. Step 5: Solve for x
   x = 2,897,011.51/1,894.42
6. Step 6: Final answer
   x = 1,529.23