Finding the Fourth Proportional to 3,075.37, 4,611.40 and 1,100.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,075.37 : 4,611.40 = 1,100.21 : x
2. Step 2: Convert to fraction form
   3,075.37/4,611.40 = 1,100.21/x
3. Step 3: Cross multiply
   3,075.37x = 4,611.40 × 1,100.21
4. Step 4: Simplify right side
   3,075.37x = 5,073,482.59
5. Step 5: Solve for x
   x = 5,073,482.59/3,075.37
6. Step 6: Final answer
   x = 1,649.72