Finding the Fourth Proportional to 1,445.76, 1,994.76 and 922.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.76 : 1,994.76 = 922.32 : x
2. Step 2: Convert to fraction form
   1,445.76/1,994.76 = 922.32/x
3. Step 3: Cross multiply
   1,445.76x = 1,994.76 × 922.32
4. Step 4: Simplify right side
   1,445.76x = 1,839,807.04
5. Step 5: Solve for x
   x = 1,839,807.04/1,445.76
6. Step 6: Final answer
   x = 1,272.55