Finding the Fourth Proportional to 1,820.88, 2,512.82 and 1,075.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.88 : 2,512.82 = 1,075.21 : x
2. Step 2: Convert to fraction form
   1,820.88/2,512.82 = 1,075.21/x
3. Step 3: Cross multiply
   1,820.88x = 2,512.82 × 1,075.21
4. Step 4: Simplify right side
   1,820.88x = 2,701,805.60
5. Step 5: Solve for x
   x = 2,701,805.60/1,820.88
6. Step 6: Final answer
   x = 1,483.79