Finding the Fourth Proportional to 2,788.58, 3,848.22 and 1,529.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.58 : 3,848.22 = 1,529.60 : x
2. Step 2: Convert to fraction form
   2,788.58/3,848.22 = 1,529.60/x
3. Step 3: Cross multiply
   2,788.58x = 3,848.22 × 1,529.60
4. Step 4: Simplify right side
   2,788.58x = 5,886,237.31
5. Step 5: Solve for x
   x = 5,886,237.31/2,788.58
6. Step 6: Final answer
   x = 2,110.84