Finding the Fourth Proportional to 2,612.23, 3,918.50 and 1,052.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.23 : 3,918.50 = 1,052.22 : x
2. Step 2: Convert to fraction form
   2,612.23/3,918.50 = 1,052.22/x
3. Step 3: Cross multiply
   2,612.23x = 3,918.50 × 1,052.22
4. Step 4: Simplify right side
   2,612.23x = 4,123,118.81
5. Step 5: Solve for x
   x = 4,123,118.81/2,612.23
6. Step 6: Final answer
   x = 1,578.39