Finding the Fourth Proportional to 2,451.50, 3,383.01 and 1,389.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,451.50 : 3,383.01 = 1,389.24 : x
2. Step 2: Convert to fraction form
   2,451.50/3,383.01 = 1,389.24/x
3. Step 3: Cross multiply
   2,451.50x = 3,383.01 × 1,389.24
4. Step 4: Simplify right side
   2,451.50x = 4,699,812.81
5. Step 5: Solve for x
   x = 4,699,812.81/2,451.50
6. Step 6: Final answer
   x = 1,917.12