Finding the Fourth Proportional to 1,357.91, 2,036.83 and 384

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.91 : 2,036.83 = 384 : x
2. Step 2: Convert to fraction form
   1,357.91/2,036.83 = 384/x
3. Step 3: Cross multiply
   1,357.91x = 2,036.83 × 384
4. Step 4: Simplify right side
   1,357.91x = 782,142.72
5. Step 5: Solve for x
   x = 782,142.72/1,357.91
6. Step 6: Final answer
   x = 575.99