Finding the Fourth Proportional to 1,106.30, 1,526.72 and 608.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,106.30 : 1,526.72 = 608.98 : x
2. Step 2: Convert to fraction form
   1,106.30/1,526.72 = 608.98/x
3. Step 3: Cross multiply
   1,106.30x = 1,526.72 × 608.98
4. Step 4: Simplify right side
   1,106.30x = 929,741.95
5. Step 5: Solve for x
   x = 929,741.95/1,106.30
6. Step 6: Final answer
   x = 840.41