Finding the Fourth Proportional to 1,112.03, 1,667.64 and 626.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.03 : 1,667.64 = 626.03 : x
2. Step 2: Convert to fraction form
   1,112.03/1,667.64 = 626.03/x
3. Step 3: Cross multiply
   1,112.03x = 1,667.64 × 626.03
4. Step 4: Simplify right side
   1,112.03x = 1,043,992.67
5. Step 5: Solve for x
   x = 1,043,992.67/1,112.03
6. Step 6: Final answer
   x = 938.82