Finding the Fourth Proportional to 2,091.54, 3,142.69 and 1,576.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.54 : 3,142.69 = 1,576.40 : x
2. Step 2: Convert to fraction form
   2,091.54/3,142.69 = 1,576.40/x
3. Step 3: Cross multiply
   2,091.54x = 3,142.69 × 1,576.40
4. Step 4: Simplify right side
   2,091.54x = 4,954,116.86
5. Step 5: Solve for x
   x = 4,954,116.86/2,091.54
6. Step 6: Final answer
   x = 2,368.65