Finding the Fourth Proportional to 3,109.50, 4,291.91 and 1,783.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.50 : 4,291.91 = 1,783.93 : x
2. Step 2: Convert to fraction form
   3,109.50/4,291.91 = 1,783.93/x
3. Step 3: Cross multiply
   3,109.50x = 4,291.91 × 1,783.93
4. Step 4: Simplify right side
   3,109.50x = 7,656,467.01
5. Step 5: Solve for x
   x = 7,656,467.01/3,109.50
6. Step 6: Final answer
   x = 2,462.28