Finding the Fourth Proportional to 2,012.33, 2,777.01 and 1,128.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.33 : 2,777.01 = 1,128.13 : x
2. Step 2: Convert to fraction form
   2,012.33/2,777.01 = 1,128.13/x
3. Step 3: Cross multiply
   2,012.33x = 2,777.01 × 1,128.13
4. Step 4: Simplify right side
   2,012.33x = 3,132,831.76
5. Step 5: Solve for x
   x = 3,132,831.76/2,012.33
6. Step 6: Final answer
   x = 1,556.82