Finding the Fourth Proportional to 2,071.83, 2,859.12 and 1,140.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.83 : 2,859.12 = 1,140.33 : x
2. Step 2: Convert to fraction form
   2,071.83/2,859.12 = 1,140.33/x
3. Step 3: Cross multiply
   2,071.83x = 2,859.12 × 1,140.33
4. Step 4: Simplify right side
   2,071.83x = 3,260,338.16
5. Step 5: Solve for x
   x = 3,260,338.16/2,071.83
6. Step 6: Final answer
   x = 1,573.65