Finding the Fourth Proportional to 1,558.50, 2,334.42 and 1,009.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558.50 : 2,334.42 = 1,009.05 : x
2. Step 2: Convert to fraction form
   1,558.50/2,334.42 = 1,009.05/x
3. Step 3: Cross multiply
   1,558.50x = 2,334.42 × 1,009.05
4. Step 4: Simplify right side
   1,558.50x = 2,355,546.50
5. Step 5: Solve for x
   x = 2,355,546.50/1,558.50
6. Step 6: Final answer
   x = 1,511.42