Finding the Fourth Proportional to 1,096.21, 1,511.85 and 703.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.21 : 1,511.85 = 703.81 : x
2. Step 2: Convert to fraction form
   1,096.21/1,511.85 = 703.81/x
3. Step 3: Cross multiply
   1,096.21x = 1,511.85 × 703.81
4. Step 4: Simplify right side
   1,096.21x = 1,064,055.15
5. Step 5: Solve for x
   x = 1,064,055.15/1,096.21
6. Step 6: Final answer
   x = 970.67