Finding the Fourth Proportional to 1,094.41, 1,510.27 and 622.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.41 : 1,510.27 = 622.31 : x
2. Step 2: Convert to fraction form
   1,094.41/1,510.27 = 622.31/x
3. Step 3: Cross multiply
   1,094.41x = 1,510.27 × 622.31
4. Step 4: Simplify right side
   1,094.41x = 939,856.12
5. Step 5: Solve for x
   x = 939,856.12/1,094.41
6. Step 6: Final answer
   x = 858.78