Finding the Fourth Proportional to 2,897.06, 4,345.52 and 705.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,897.06 : 4,345.52 = 705.78 : x
2. Step 2: Convert to fraction form
   2,897.06/4,345.52 = 705.78/x
3. Step 3: Cross multiply
   2,897.06x = 4,345.52 × 705.78
4. Step 4: Simplify right side
   2,897.06x = 3,066,977.58
5. Step 5: Solve for x
   x = 3,066,977.58/2,897.06
6. Step 6: Final answer
   x = 1,058.65