Finding the Fourth Proportional to 1,094.84, 1,510.78 and 622.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.84 : 1,510.78 = 622.74 : x
2. Step 2: Convert to fraction form
   1,094.84/1,510.78 = 622.74/x
3. Step 3: Cross multiply
   1,094.84x = 1,510.78 × 622.74
4. Step 4: Simplify right side
   1,094.84x = 940,823.14
5. Step 5: Solve for x
   x = 940,823.14/1,094.84
6. Step 6: Final answer
   x = 859.32