Finding the Fourth Proportional to 2,590.35, 3,883.81 and 1,807.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.35 : 3,883.81 = 1,807.81 : x
2. Step 2: Convert to fraction form
   2,590.35/3,883.81 = 1,807.81/x
3. Step 3: Cross multiply
   2,590.35x = 3,883.81 × 1,807.81
4. Step 4: Simplify right side
   2,590.35x = 7,021,190.56
5. Step 5: Solve for x
   x = 7,021,190.56/2,590.35
6. Step 6: Final answer
   x = 2,710.52