Finding the Fourth Proportional to 2,065.58, 3,098.72 and 1,025.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.58 : 3,098.72 = 1,025.64 : x
2. Step 2: Convert to fraction form
   2,065.58/3,098.72 = 1,025.64/x
3. Step 3: Cross multiply
   2,065.58x = 3,098.72 × 1,025.64
4. Step 4: Simplify right side
   2,065.58x = 3,178,171.18
5. Step 5: Solve for x
   x = 3,178,171.18/2,065.58
6. Step 6: Final answer
   x = 1,538.63