Finding the Fourth Proportional to 1,893.89, 2,613.77 and 1,108.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,893.89 : 2,613.77 = 1,108.60 : x
2. Step 2: Convert to fraction form
   1,893.89/2,613.77 = 1,108.60/x
3. Step 3: Cross multiply
   1,893.89x = 2,613.77 × 1,108.60
4. Step 4: Simplify right side
   1,893.89x = 2,897,618.39
5. Step 5: Solve for x
   x = 2,897,618.39/1,893.89
6. Step 6: Final answer
   x = 1,529.98