Finding the Fourth Proportional to 1,442.41, 2,160.76 and 953.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442.41 : 2,160.76 = 953.98 : x
2. Step 2: Convert to fraction form
   1,442.41/2,160.76 = 953.98/x
3. Step 3: Cross multiply
   1,442.41x = 2,160.76 × 953.98
4. Step 4: Simplify right side
   1,442.41x = 2,061,321.82
5. Step 5: Solve for x
   x = 2,061,321.82/1,442.41
6. Step 6: Final answer
   x = 1,429.08