Finding the Fourth Proportional to 1,794.72, 2,690.63 and 561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,794.72 : 2,690.63 = 561.50 : x
2. Step 2: Convert to fraction form
   1,794.72/2,690.63 = 561.50/x
3. Step 3: Cross multiply
   1,794.72x = 2,690.63 × 561.50
4. Step 4: Simplify right side
   1,794.72x = 1,510,775.29
5. Step 5: Solve for x
   x = 1,510,775.29/1,794.72
6. Step 6: Final answer
   x = 841.79