Finding the Fourth Proportional to 978.88, 1,462.58 and 944.86

Step by Step Solution

1. Step 1: Write the proportion equation
   978.88 : 1,462.58 = 944.86 : x
2. Step 2: Convert to fraction form
   978.88/1,462.58 = 944.86/x
3. Step 3: Cross multiply
   978.88x = 1,462.58 × 944.86
4. Step 4: Simplify right side
   978.88x = 1,381,933.34
5. Step 5: Solve for x
   x = 1,381,933.34/978.88
6. Step 6: Final answer
   x = 1,411.75