Finding the Fourth Proportional to 1,664.72, 2,296.60 and 1,075.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664.72 : 2,296.60 = 1,075.32 : x
2. Step 2: Convert to fraction form
   1,664.72/2,296.60 = 1,075.32/x
3. Step 3: Cross multiply
   1,664.72x = 2,296.60 × 1,075.32
4. Step 4: Simplify right side
   1,664.72x = 2,469,579.91
5. Step 5: Solve for x
   x = 2,469,579.91/1,664.72
6. Step 6: Final answer
   x = 1,483.48