Finding the Fourth Proportional to 2,590.28, 3,886.01 and 946.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.28 : 3,886.01 = 946.82 : x
2. Step 2: Convert to fraction form
   2,590.28/3,886.01 = 946.82/x
3. Step 3: Cross multiply
   2,590.28x = 3,886.01 × 946.82
4. Step 4: Simplify right side
   2,590.28x = 3,679,360.52
5. Step 5: Solve for x
   x = 3,679,360.52/2,590.28
6. Step 6: Final answer
   x = 1,420.45