Finding the Fourth Proportional to 2,590.60, 3,883.46 and 1,290.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.60 : 3,883.46 = 1,290.84 : x
2. Step 2: Convert to fraction form
   2,590.60/3,883.46 = 1,290.84/x
3. Step 3: Cross multiply
   2,590.60x = 3,883.46 × 1,290.84
4. Step 4: Simplify right side
   2,590.60x = 5,012,925.51
5. Step 5: Solve for x
   x = 5,012,925.51/2,590.60
6. Step 6: Final answer
   x = 1,935.04