Finding the Fourth Proportional to 2,075.82, 2,865.96 and 1,290.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.82 : 2,865.96 = 1,290.93 : x
2. Step 2: Convert to fraction form
   2,075.82/2,865.96 = 1,290.93/x
3. Step 3: Cross multiply
   2,075.82x = 2,865.96 × 1,290.93
4. Step 4: Simplify right side
   2,075.82x = 3,699,753.74
5. Step 5: Solve for x
   x = 3,699,753.74/2,075.82
6. Step 6: Final answer
   x = 1,782.31