Finding the Fourth Proportional to 2,072.17, 2,859.62 and 1,127.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.17 : 2,859.62 = 1,127.98 : x
2. Step 2: Convert to fraction form
   2,072.17/2,859.62 = 1,127.98/x
3. Step 3: Cross multiply
   2,072.17x = 2,859.62 × 1,127.98
4. Step 4: Simplify right side
   2,072.17x = 3,225,594.17
5. Step 5: Solve for x
   x = 3,225,594.17/2,072.17
6. Step 6: Final answer
   x = 1,556.63