Finding the Fourth Proportional to 2,091.79, 2,886.74 and 1,160.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.79 : 2,886.74 = 1,160.29 : x
2. Step 2: Convert to fraction form
   2,091.79/2,886.74 = 1,160.29/x
3. Step 3: Cross multiply
   2,091.79x = 2,886.74 × 1,160.29
4. Step 4: Simplify right side
   2,091.79x = 3,349,455.55
5. Step 5: Solve for x
   x = 3,349,455.55/2,091.79
6. Step 6: Final answer
   x = 1,601.24