Finding the Fourth Proportional to 1,814.32, 2,505.83 and 1,284.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.32 : 2,505.83 = 1,284.54 : x
2. Step 2: Convert to fraction form
   1,814.32/2,505.83 = 1,284.54/x
3. Step 3: Cross multiply
   1,814.32x = 2,505.83 × 1,284.54
4. Step 4: Simplify right side
   1,814.32x = 3,218,838.87
5. Step 5: Solve for x
   x = 3,218,838.87/1,814.32
6. Step 6: Final answer
   x = 1,774.13