Finding the Fourth Proportional to 2,105.05, 2,905.77 and 1,582.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.05 : 2,905.77 = 1,582.60 : x
2. Step 2: Convert to fraction form
   2,105.05/2,905.77 = 1,582.60/x
3. Step 3: Cross multiply
   2,105.05x = 2,905.77 × 1,582.60
4. Step 4: Simplify right side
   2,105.05x = 4,598,671.60
5. Step 5: Solve for x
   x = 4,598,671.60/2,105.05
6. Step 6: Final answer
   x = 2,184.59