Finding the Fourth Proportional to 1,429.44, 1,971.14 and 980.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.44 : 1,971.14 = 980.82 : x
2. Step 2: Convert to fraction form
   1,429.44/1,971.14 = 980.82/x
3. Step 3: Cross multiply
   1,429.44x = 1,971.14 × 980.82
4. Step 4: Simplify right side
   1,429.44x = 1,933,333.53
5. Step 5: Solve for x
   x = 1,933,333.53/1,429.44
6. Step 6: Final answer
   x = 1,352.51