Finding the Fourth Proportional to 1,458.64, 2,196.46 and 1,076.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458.64 : 2,196.46 = 1,076.56 : x
2. Step 2: Convert to fraction form
   1,458.64/2,196.46 = 1,076.56/x
3. Step 3: Cross multiply
   1,458.64x = 2,196.46 × 1,076.56
4. Step 4: Simplify right side
   1,458.64x = 2,364,620.98
5. Step 5: Solve for x
   x = 2,364,620.98/1,458.64
6. Step 6: Final answer
   x = 1,621.11