Finding the Fourth Proportional to 1,705.88, 2,354.46 and 1,007.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,705.88 : 2,354.46 = 1,007.12 : x
2. Step 2: Convert to fraction form
   1,705.88/2,354.46 = 1,007.12/x
3. Step 3: Cross multiply
   1,705.88x = 2,354.46 × 1,007.12
4. Step 4: Simplify right side
   1,705.88x = 2,371,223.76
5. Step 5: Solve for x
   x = 2,371,223.76/1,705.88
6. Step 6: Final answer
   x = 1,390.03