Finding the Fourth Proportional to 3,111.77, 4,669.74 and 1,163.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.77 : 4,669.74 = 1,163.99 : x
2. Step 2: Convert to fraction form
   3,111.77/4,669.74 = 1,163.99/x
3. Step 3: Cross multiply
   3,111.77x = 4,669.74 × 1,163.99
4. Step 4: Simplify right side
   3,111.77x = 5,435,507.31
5. Step 5: Solve for x
   x = 5,435,507.31/3,111.77
6. Step 6: Final answer
   x = 1,746.76