Finding the Fourth Proportional to 2,652.77, 3,980.51 and 1,191.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,652.77 : 3,980.51 = 1,191.62 : x
2. Step 2: Convert to fraction form
   2,652.77/3,980.51 = 1,191.62/x
3. Step 3: Cross multiply
   2,652.77x = 3,980.51 × 1,191.62
4. Step 4: Simplify right side
   2,652.77x = 4,743,255.33
5. Step 5: Solve for x
   x = 4,743,255.33/2,652.77
6. Step 6: Final answer
   x = 1,788.04