Finding the Fourth Proportional to 3,109.95, 4,291.83 and 1,783.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.95 : 4,291.83 = 1,783.98 : x
2. Step 2: Convert to fraction form
   3,109.95/4,291.83 = 1,783.98/x
3. Step 3: Cross multiply
   3,109.95x = 4,291.83 × 1,783.98
4. Step 4: Simplify right side
   3,109.95x = 7,656,538.88
5. Step 5: Solve for x
   x = 7,656,538.88/3,109.95
6. Step 6: Final answer
   x = 2,461.95