Finding the Fourth Proportional to 3,393.98, 5,090.82 and 1,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,393.98 : 5,090.82 = 1,314.50 : x
2. Step 2: Convert to fraction form
   3,393.98/5,090.82 = 1,314.50/x
3. Step 3: Cross multiply
   3,393.98x = 5,090.82 × 1,314.50
4. Step 4: Simplify right side
   3,393.98x = 6,691,882.89
5. Step 5: Solve for x
   x = 6,691,882.89/3,393.98
6. Step 6: Final answer
   x = 1,971.69