Finding the Fourth Proportional to 2,590.90, 3,575.40 and 1,412.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.90 : 3,575.40 = 1,412.02 : x
2. Step 2: Convert to fraction form
   2,590.90/3,575.40 = 1,412.02/x
3. Step 3: Cross multiply
   2,590.90x = 3,575.40 × 1,412.02
4. Step 4: Simplify right side
   2,590.90x = 5,048,536.31
5. Step 5: Solve for x
   x = 5,048,536.31/2,590.90
6. Step 6: Final answer
   x = 1,948.56