Finding the Fourth Proportional to 1,936.64, 2,672.88 and 1,150.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,936.64 : 2,672.88 = 1,150.72 : x
2. Step 2: Convert to fraction form
   1,936.64/2,672.88 = 1,150.72/x
3. Step 3: Cross multiply
   1,936.64x = 2,672.88 × 1,150.72
4. Step 4: Simplify right side
   1,936.64x = 3,075,736.47
5. Step 5: Solve for x
   x = 3,075,736.47/1,936.64
6. Step 6: Final answer
   x = 1,588.18