Finding the Fourth Proportional to 1,894.61, 2,613.72 and 1,108.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,894.61 : 2,613.72 = 1,108.31 : x
2. Step 2: Convert to fraction form
   1,894.61/2,613.72 = 1,108.31/x
3. Step 3: Cross multiply
   1,894.61x = 2,613.72 × 1,108.31
4. Step 4: Simplify right side
   1,894.61x = 2,896,812.01
5. Step 5: Solve for x
   x = 2,896,812.01/1,894.61
6. Step 6: Final answer
   x = 1,528.98