Finding the Fourth Proportional to 2,103.23, 3,148.89 and 1,113.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.23 : 3,148.89 = 1,113.80 : x
2. Step 2: Convert to fraction form
   2,103.23/3,148.89 = 1,113.80/x
3. Step 3: Cross multiply
   2,103.23x = 3,148.89 × 1,113.80
4. Step 4: Simplify right side
   2,103.23x = 3,507,237.74
5. Step 5: Solve for x
   x = 3,507,237.74/2,103.23
6. Step 6: Final answer
   x = 1,667.55