Finding the Fourth Proportional to 1,030.41, 1,422.36 and 764.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,030.41 : 1,422.36 = 764.42 : x
2. Step 2: Convert to fraction form
   1,030.41/1,422.36 = 764.42/x
3. Step 3: Cross multiply
   1,030.41x = 1,422.36 × 764.42
4. Step 4: Simplify right side
   1,030.41x = 1,087,273.32
5. Step 5: Solve for x
   x = 1,087,273.32/1,030.41
6. Step 6: Final answer
   x = 1,055.19