Finding the Fourth Proportional to 1,142.82, 1,575.54 and 976.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142.82 : 1,575.54 = 976.32 : x
2. Step 2: Convert to fraction form
   1,142.82/1,575.54 = 976.32/x
3. Step 3: Cross multiply
   1,142.82x = 1,575.54 × 976.32
4. Step 4: Simplify right side
   1,142.82x = 1,538,231.21
5. Step 5: Solve for x
   x = 1,538,231.21/1,142.82
6. Step 6: Final answer
   x = 1,346.00