Finding the Fourth Proportional to 2,978.83, 4,468.59 and 1,131.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.83 : 4,468.59 = 1,131.33 : x
2. Step 2: Convert to fraction form
   2,978.83/4,468.59 = 1,131.33/x
3. Step 3: Cross multiply
   2,978.83x = 4,468.59 × 1,131.33
4. Step 4: Simplify right side
   2,978.83x = 5,055,449.92
5. Step 5: Solve for x
   x = 5,055,449.92/2,978.83
6. Step 6: Final answer
   x = 1,697.13