Finding the Fourth Proportional to 1,094.77, 1,510.71 and 622.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.77 : 1,510.71 = 622.63 : x
2. Step 2: Convert to fraction form
   1,094.77/1,510.71 = 622.63/x
3. Step 3: Cross multiply
   1,094.77x = 1,510.71 × 622.63
4. Step 4: Simplify right side
   1,094.77x = 940,613.37
5. Step 5: Solve for x
   x = 940,613.37/1,094.77
6. Step 6: Final answer
   x = 859.19