Finding the Fourth Proportional to 2,387.83, 3,580.29 and 1,071.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.83 : 3,580.29 = 1,071.33 : x
2. Step 2: Convert to fraction form
   2,387.83/3,580.29 = 1,071.33/x
3. Step 3: Cross multiply
   2,387.83x = 3,580.29 × 1,071.33
4. Step 4: Simplify right side
   2,387.83x = 3,835,672.09
5. Step 5: Solve for x
   x = 3,835,672.09/2,387.83
6. Step 6: Final answer
   x = 1,606.34