Finding the Fourth Proportional to 1,141.42, 1,575.21 and 699.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.42 : 1,575.21 = 699.34 : x
2. Step 2: Convert to fraction form
   1,141.42/1,575.21 = 699.34/x
3. Step 3: Cross multiply
   1,141.42x = 1,575.21 × 699.34
4. Step 4: Simplify right side
   1,141.42x = 1,101,605.61
5. Step 5: Solve for x
   x = 1,101,605.61/1,141.42
6. Step 6: Final answer
   x = 965.12