Finding the Fourth Proportional to 1,433.95, 1,978.77 and 844.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.95 : 1,978.77 = 844.68 : x
2. Step 2: Convert to fraction form
   1,433.95/1,978.77 = 844.68/x
3. Step 3: Cross multiply
   1,433.95x = 1,978.77 × 844.68
4. Step 4: Simplify right side
   1,433.95x = 1,671,417.55
5. Step 5: Solve for x
   x = 1,671,417.55/1,433.95
6. Step 6: Final answer
   x = 1,165.60