Finding the Fourth Proportional to 2,620.89, 3,617.00 and 1,558.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.89 : 3,617.00 = 1,558.37 : x
2. Step 2: Convert to fraction form
   2,620.89/3,617.00 = 1,558.37/x
3. Step 3: Cross multiply
   2,620.89x = 3,617.00 × 1,558.37
4. Step 4: Simplify right side
   2,620.89x = 5,636,598.41
5. Step 5: Solve for x
   x = 5,636,598.41/2,620.89
6. Step 6: Final answer
   x = 2,150.64