Finding the Fourth Proportional to 2,883.25, 3,978.89 and 1,556.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,883.25 : 3,978.89 = 1,556.96 : x
2. Step 2: Convert to fraction form
   2,883.25/3,978.89 = 1,556.96/x
3. Step 3: Cross multiply
   2,883.25x = 3,978.89 × 1,556.96
4. Step 4: Simplify right side
   2,883.25x = 6,194,953.29
5. Step 5: Solve for x
   x = 6,194,953.29/2,883.25
6. Step 6: Final answer
   x = 2,148.60