Finding the Fourth Proportional to 1,823.60, 2,516.72 and 1,491.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823.60 : 2,516.72 = 1,491.09 : x
2. Step 2: Convert to fraction form
   1,823.60/2,516.72 = 1,491.09/x
3. Step 3: Cross multiply
   1,823.60x = 2,516.72 × 1,491.09
4. Step 4: Simplify right side
   1,823.60x = 3,752,648.57
5. Step 5: Solve for x
   x = 3,752,648.57/1,823.60
6. Step 6: Final answer
   x = 2,057.83