Finding the Fourth Proportional to 1,445.76, 1,992.82 and 1,130.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.76 : 1,992.82 = 1,130.48 : x
2. Step 2: Convert to fraction form
   1,445.76/1,992.82 = 1,130.48/x
3. Step 3: Cross multiply
   1,445.76x = 1,992.82 × 1,130.48
4. Step 4: Simplify right side
   1,445.76x = 2,252,843.15
5. Step 5: Solve for x
   x = 2,252,843.15/1,445.76
6. Step 6: Final answer
   x = 1,558.24