Finding the Fourth Proportional to 3,113.80, 4,667.10 and 1,263.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,113.80 : 4,667.10 = 1,263.70 : x
2. Step 2: Convert to fraction form
   3,113.80/4,667.10 = 1,263.70/x
3. Step 3: Cross multiply
   3,113.80x = 4,667.10 × 1,263.70
4. Step 4: Simplify right side
   3,113.80x = 5,897,814.27
5. Step 5: Solve for x
   x = 5,897,814.27/3,113.80
6. Step 6: Final answer
   x = 1,894.09