Finding the Fourth Proportional to 1,445.84, 1,994.45 and 914.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.84 : 1,994.45 = 914.56 : x
2. Step 2: Convert to fraction form
   1,445.84/1,994.45 = 914.56/x
3. Step 3: Cross multiply
   1,445.84x = 1,994.45 × 914.56
4. Step 4: Simplify right side
   1,445.84x = 1,824,045.54
5. Step 5: Solve for x
   x = 1,824,045.54/1,445.84
6. Step 6: Final answer
   x = 1,261.58