Finding the Fourth Proportional to 1,094.42, 1,510.55 and 721.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.42 : 1,510.55 = 721.46 : x
2. Step 2: Convert to fraction form
   1,094.42/1,510.55 = 721.46/x
3. Step 3: Cross multiply
   1,094.42x = 1,510.55 × 721.46
4. Step 4: Simplify right side
   1,094.42x = 1,089,804.28
5. Step 5: Solve for x
   x = 1,089,804.28/1,094.42
6. Step 6: Final answer
   x = 995.79