Finding the Fourth Proportional to 1,087.93, 1,630.60 and 626.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.93 : 1,630.60 = 626.03 : x
2. Step 2: Convert to fraction form
   1,087.93/1,630.60 = 626.03/x
3. Step 3: Cross multiply
   1,087.93x = 1,630.60 × 626.03
4. Step 4: Simplify right side
   1,087.93x = 1,020,804.52
5. Step 5: Solve for x
   x = 1,020,804.52/1,087.93
6. Step 6: Final answer
   x = 938.30