Finding the Fourth Proportional to 1,114.89, 1,673.86 and 628.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.89 : 1,673.86 = 628.28 : x
2. Step 2: Convert to fraction form
   1,114.89/1,673.86 = 628.28/x
3. Step 3: Cross multiply
   1,114.89x = 1,673.86 × 628.28
4. Step 4: Simplify right side
   1,114.89x = 1,051,652.76
5. Step 5: Solve for x
   x = 1,051,652.76/1,114.89
6. Step 6: Final answer
   x = 943.28