Finding the Fourth Proportional to 2,103.48, 3,157.91 and 1,314.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.48 : 3,157.91 = 1,314.07 : x
2. Step 2: Convert to fraction form
   2,103.48/3,157.91 = 1,314.07/x
3. Step 3: Cross multiply
   2,103.48x = 3,157.91 × 1,314.07
4. Step 4: Simplify right side
   2,103.48x = 4,149,692.43
5. Step 5: Solve for x
   x = 4,149,692.43/2,103.48
6. Step 6: Final answer
   x = 1,972.78