Finding the Fourth Proportional to 2,083.89, 3,127.38 and 988.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.89 : 3,127.38 = 988.26 : x
2. Step 2: Convert to fraction form
   2,083.89/3,127.38 = 988.26/x
3. Step 3: Cross multiply
   2,083.89x = 3,127.38 × 988.26
4. Step 4: Simplify right side
   2,083.89x = 3,090,659.62
5. Step 5: Solve for x
   x = 3,090,659.62/2,083.89
6. Step 6: Final answer
   x = 1,483.12