Finding the Fourth Proportional to 1,893.89, 2,613.34 and 1,147.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,893.89 : 2,613.34 = 1,147.57 : x
2. Step 2: Convert to fraction form
   1,893.89/2,613.34 = 1,147.57/x
3. Step 3: Cross multiply
   1,893.89x = 2,613.34 × 1,147.57
4. Step 4: Simplify right side
   1,893.89x = 2,998,990.58
5. Step 5: Solve for x
   x = 2,998,990.58/1,893.89
6. Step 6: Final answer
   x = 1,583.51