Finding the Fourth Proportional to 1,094.81, 1,510.92 and 622.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.81 : 1,510.92 = 622.55 : x
2. Step 2: Convert to fraction form
   1,094.81/1,510.92 = 622.55/x
3. Step 3: Cross multiply
   1,094.81x = 1,510.92 × 622.55
4. Step 4: Simplify right side
   1,094.81x = 940,627.02
5. Step 5: Solve for x
   x = 940,627.02/1,094.81
6. Step 6: Final answer
   x = 859.17