Finding the Fourth Proportional to 5,558.42, 8,339.69 and 2,598.54

Step by Step Solution

1. Step 1: Write the proportion equation
   5,558.42 : 8,339.69 = 2,598.54 : x
2. Step 2: Convert to fraction form
   5,558.42/8,339.69 = 2,598.54/x
3. Step 3: Cross multiply
   5,558.42x = 8,339.69 × 2,598.54
4. Step 4: Simplify right side
   5,558.42x = 21,671,005.06
5. Step 5: Solve for x
   x = 21,671,005.06/5,558.42
6. Step 6: Final answer
   x = 3,898.77