Finding the Fourth Proportional to 1,767.69, 2,638.58 and 1,560.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.69 : 2,638.58 = 1,560.13 : x
2. Step 2: Convert to fraction form
   1,767.69/2,638.58 = 1,560.13/x
3. Step 3: Cross multiply
   1,767.69x = 2,638.58 × 1,560.13
4. Step 4: Simplify right side
   1,767.69x = 4,116,513.42
5. Step 5: Solve for x
   x = 4,116,513.42/1,767.69
6. Step 6: Final answer
   x = 2,328.75