Finding the Fourth Proportional to 1,453.54, 2,180.55 and 683.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.54 : 2,180.55 = 683.62 : x
2. Step 2: Convert to fraction form
   1,453.54/2,180.55 = 683.62/x
3. Step 3: Cross multiply
   1,453.54x = 2,180.55 × 683.62
4. Step 4: Simplify right side
   1,453.54x = 1,490,667.59
5. Step 5: Solve for x
   x = 1,490,667.59/1,453.54
6. Step 6: Final answer
   x = 1,025.54