Finding the Fourth Proportional to 1,441.88, 1,981.16 and 1,146.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.88 : 1,981.16 = 1,146.63 : x
2. Step 2: Convert to fraction form
   1,441.88/1,981.16 = 1,146.63/x
3. Step 3: Cross multiply
   1,441.88x = 1,981.16 × 1,146.63
4. Step 4: Simplify right side
   1,441.88x = 2,271,657.49
5. Step 5: Solve for x
   x = 2,271,657.49/1,441.88
6. Step 6: Final answer
   x = 1,575.48