Finding the Fourth Proportional to 1,515.63, 2,091.78 and 1,097.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515.63 : 2,091.78 = 1,097.37 : x
2. Step 2: Convert to fraction form
   1,515.63/2,091.78 = 1,097.37/x
3. Step 3: Cross multiply
   1,515.63x = 2,091.78 × 1,097.37
4. Step 4: Simplify right side
   1,515.63x = 2,295,456.62
5. Step 5: Solve for x
   x = 2,295,456.62/1,515.63
6. Step 6: Final answer
   x = 1,514.52