Finding the Fourth Proportional to 1,938.42, 2,907.61 and 705.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.42 : 2,907.61 = 705.83 : x
2. Step 2: Convert to fraction form
   1,938.42/2,907.61 = 705.83/x
3. Step 3: Cross multiply
   1,938.42x = 2,907.61 × 705.83
4. Step 4: Simplify right side
   1,938.42x = 2,052,262.06
5. Step 5: Solve for x
   x = 2,052,262.06/1,938.42
6. Step 6: Final answer
   x = 1,058.73