Finding the Fourth Proportional to 1,642.83, 2,271.48 and 1,435.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,642.83 : 2,271.48 = 1,435.33 : x
2. Step 2: Convert to fraction form
   1,642.83/2,271.48 = 1,435.33/x
3. Step 3: Cross multiply
   1,642.83x = 2,271.48 × 1,435.33
4. Step 4: Simplify right side
   1,642.83x = 3,260,323.39
5. Step 5: Solve for x
   x = 3,260,323.39/1,642.83
6. Step 6: Final answer
   x = 1,984.58