Finding the Fourth Proportional to 2,650.77, 3,977.51 and 1,189.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.77 : 3,977.51 = 1,189.62 : x
2. Step 2: Convert to fraction form
   2,650.77/3,977.51 = 1,189.62/x
3. Step 3: Cross multiply
   2,650.77x = 3,977.51 × 1,189.62
4. Step 4: Simplify right side
   2,650.77x = 4,731,719.50
5. Step 5: Solve for x
   x = 4,731,719.50/2,650.77
6. Step 6: Final answer
   x = 1,785.04