Finding the Fourth Proportional to 1,075.80, 1,483.98 and 725.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075.80 : 1,483.98 = 725.88 : x
2. Step 2: Convert to fraction form
   1,075.80/1,483.98 = 725.88/x
3. Step 3: Cross multiply
   1,075.80x = 1,483.98 × 725.88
4. Step 4: Simplify right side
   1,075.80x = 1,077,191.40
5. Step 5: Solve for x
   x = 1,077,191.40/1,075.80
6. Step 6: Final answer
   x = 1,001.29