Finding the Fourth Proportional to 1,094.86, 1,510.93 and 622.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.86 : 1,510.93 = 622.78 : x
2. Step 2: Convert to fraction form
   1,094.86/1,510.93 = 622.78/x
3. Step 3: Cross multiply
   1,094.86x = 1,510.93 × 622.78
4. Step 4: Simplify right side
   1,094.86x = 940,969.43
5. Step 5: Solve for x
   x = 940,969.43/1,094.86
6. Step 6: Final answer
   x = 859.44