Finding the Fourth Proportional to 1,106.22, 1,526.59 and 608.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,106.22 : 1,526.59 = 608.89 : x
2. Step 2: Convert to fraction form
   1,106.22/1,526.59 = 608.89/x
3. Step 3: Cross multiply
   1,106.22x = 1,526.59 × 608.89
4. Step 4: Simplify right side
   1,106.22x = 929,525.77
5. Step 5: Solve for x
   x = 929,525.77/1,106.22
6. Step 6: Final answer
   x = 840.27