Finding the Fourth Proportional to 1,399.51, 2,096.48 and 1,284.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399.51 : 2,096.48 = 1,284.69 : x
2. Step 2: Convert to fraction form
   1,399.51/2,096.48 = 1,284.69/x
3. Step 3: Cross multiply
   1,399.51x = 2,096.48 × 1,284.69
4. Step 4: Simplify right side
   1,399.51x = 2,693,337.96
5. Step 5: Solve for x
   x = 2,693,337.96/1,399.51
6. Step 6: Final answer
   x = 1,924.48