Finding the Fourth Proportional to 2,091.19, 2,885.88 and 1,147.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.19 : 2,885.88 = 1,147.07 : x
2. Step 2: Convert to fraction form
   2,091.19/2,885.88 = 1,147.07/x
3. Step 3: Cross multiply
   2,091.19x = 2,885.88 × 1,147.07
4. Step 4: Simplify right side
   2,091.19x = 3,310,297.45
5. Step 5: Solve for x
   x = 3,310,297.45/2,091.19
6. Step 6: Final answer
   x = 1,582.98