Finding the Fourth Proportional to 1,820.99, 2,512.37 and 1,075.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.99 : 2,512.37 = 1,075.20 : x
2. Step 2: Convert to fraction form
   1,820.99/2,512.37 = 1,075.20/x
3. Step 3: Cross multiply
   1,820.99x = 2,512.37 × 1,075.20
4. Step 4: Simplify right side
   1,820.99x = 2,701,300.22
5. Step 5: Solve for x
   x = 2,701,300.22/1,820.99
6. Step 6: Final answer
   x = 1,483.42