Finding the Fourth Proportional to 1,009.91, 1,394.15 and 761.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009.91 : 1,394.15 = 761.33 : x
2. Step 2: Convert to fraction form
   1,009.91/1,394.15 = 761.33/x
3. Step 3: Cross multiply
   1,009.91x = 1,394.15 × 761.33
4. Step 4: Simplify right side
   1,009.91x = 1,061,397.44
5. Step 5: Solve for x
   x = 1,061,397.44/1,009.91
6. Step 6: Final answer
   x = 1,050.99