Finding the Fourth Proportional to 1,433.76, 1,978.92 and 844.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.76 : 1,978.92 = 844.50 : x
2. Step 2: Convert to fraction form
   1,433.76/1,978.92 = 844.50/x
3. Step 3: Cross multiply
   1,433.76x = 1,978.92 × 844.50
4. Step 4: Simplify right side
   1,433.76x = 1,671,197.94
5. Step 5: Solve for x
   x = 1,671,197.94/1,433.76
6. Step 6: Final answer
   x = 1,165.61