Finding the Fourth Proportional to 1,667.70, 2,502.69 and 628.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.70 : 2,502.69 = 628.53 : x
2. Step 2: Convert to fraction form
   1,667.70/2,502.69 = 628.53/x
3. Step 3: Cross multiply
   1,667.70x = 2,502.69 × 628.53
4. Step 4: Simplify right side
   1,667.70x = 1,573,015.75
5. Step 5: Solve for x
   x = 1,573,015.75/1,667.70
6. Step 6: Final answer
   x = 943.22