Finding the Fourth Proportional to 2,191.47, 3,023.50 and 1,445.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.47 : 3,023.50 = 1,445.80 : x
2. Step 2: Convert to fraction form
   2,191.47/3,023.50 = 1,445.80/x
3. Step 3: Cross multiply
   2,191.47x = 3,023.50 × 1,445.80
4. Step 4: Simplify right side
   2,191.47x = 4,371,376.30
5. Step 5: Solve for x
   x = 4,371,376.30/2,191.47
6. Step 6: Final answer
   x = 1,994.72