Finding the Fourth Proportional to 1,433.98, 1,978.86 and 844.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.98 : 1,978.86 = 844.53 : x
2. Step 2: Convert to fraction form
   1,433.98/1,978.86 = 844.53/x
3. Step 3: Cross multiply
   1,433.98x = 1,978.86 × 844.53
4. Step 4: Simplify right side
   1,433.98x = 1,671,206.64
5. Step 5: Solve for x
   x = 1,671,206.64/1,433.98
6. Step 6: Final answer
   x = 1,165.43