Finding the Fourth Proportional to 1,667.00, 2,498.78 and 626.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.00 : 2,498.78 = 626.81 : x
2. Step 2: Convert to fraction form
   1,667.00/2,498.78 = 626.81/x
3. Step 3: Cross multiply
   1,667.00x = 2,498.78 × 626.81
4. Step 4: Simplify right side
   1,667.00x = 1,566,249.36
5. Step 5: Solve for x
   x = 1,566,249.36/1,667.00
6. Step 6: Final answer
   x = 939.56