Finding the Fourth Proportional to 2,588.58, 3,883.47 and 739.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,588.58 : 3,883.47 = 739.72 : x
2. Step 2: Convert to fraction form
   2,588.58/3,883.47 = 739.72/x
3. Step 3: Cross multiply
   2,588.58x = 3,883.47 × 739.72
4. Step 4: Simplify right side
   2,588.58x = 2,872,670.72
5. Step 5: Solve for x
   x = 2,872,670.72/2,588.58
6. Step 6: Final answer
   x = 1,109.75