Finding the Fourth Proportional to 2,602.70, 3,899.73 and 1,831.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.70 : 3,899.73 = 1,831.58 : x
2. Step 2: Convert to fraction form
   2,602.70/3,899.73 = 1,831.58/x
3. Step 3: Cross multiply
   2,602.70x = 3,899.73 × 1,831.58
4. Step 4: Simplify right side
   2,602.70x = 7,142,667.47
5. Step 5: Solve for x
   x = 7,142,667.47/2,602.70
6. Step 6: Final answer
   x = 2,744.33