Finding the Fourth Proportional to 2,086.29, 3,127.96 and 1,045.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.29 : 3,127.96 = 1,045.55 : x
2. Step 2: Convert to fraction form
   2,086.29/3,127.96 = 1,045.55/x
3. Step 3: Cross multiply
   2,086.29x = 3,127.96 × 1,045.55
4. Step 4: Simplify right side
   2,086.29x = 3,270,438.58
5. Step 5: Solve for x
   x = 3,270,438.58/2,086.29
6. Step 6: Final answer
   x = 1,567.59