Finding the Fourth Proportional to 2,036.01, 2,809.83 and 1,139.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,036.01 : 2,809.83 = 1,139.76 : x
2. Step 2: Convert to fraction form
   2,036.01/2,809.83 = 1,139.76/x
3. Step 3: Cross multiply
   2,036.01x = 2,809.83 × 1,139.76
4. Step 4: Simplify right side
   2,036.01x = 3,202,531.84
5. Step 5: Solve for x
   x = 3,202,531.84/2,036.01
6. Step 6: Final answer
   x = 1,572.95