Finding the Fourth Proportional to 2,071.90, 2,859.27 and 1,127.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.90 : 2,859.27 = 1,127.74 : x
2. Step 2: Convert to fraction form
   2,071.90/2,859.27 = 1,127.74/x
3. Step 3: Cross multiply
   2,071.90x = 2,859.27 × 1,127.74
4. Step 4: Simplify right side
   2,071.90x = 3,224,513.15
5. Step 5: Solve for x
   x = 3,224,513.15/2,071.90
6. Step 6: Final answer
   x = 1,556.31