Finding the Fourth Proportional to 1,395.56, 2,090.94 and 983.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.56 : 2,090.94 = 983.96 : x
2. Step 2: Convert to fraction form
   1,395.56/2,090.94 = 983.96/x
3. Step 3: Cross multiply
   1,395.56x = 2,090.94 × 983.96
4. Step 4: Simplify right side
   1,395.56x = 2,057,401.32
5. Step 5: Solve for x
   x = 2,057,401.32/1,395.56
6. Step 6: Final answer
   x = 1,474.25