Finding the Fourth Proportional to 1,078.03, 1,487.46 and 705.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.03 : 1,487.46 = 705.56 : x
2. Step 2: Convert to fraction form
   1,078.03/1,487.46 = 705.56/x
3. Step 3: Cross multiply
   1,078.03x = 1,487.46 × 705.56
4. Step 4: Simplify right side
   1,078.03x = 1,049,492.28
5. Step 5: Solve for x
   x = 1,049,492.28/1,078.03
6. Step 6: Final answer
   x = 973.53