Finding the Fourth Proportional to 1,094.28, 1,510.29 and 622.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.28 : 1,510.29 = 622.39 : x
2. Step 2: Convert to fraction form
   1,094.28/1,510.29 = 622.39/x
3. Step 3: Cross multiply
   1,094.28x = 1,510.29 × 622.39
4. Step 4: Simplify right side
   1,094.28x = 939,978.73
5. Step 5: Solve for x
   x = 939,978.73/1,094.28
6. Step 6: Final answer
   x = 858.99