Finding the Fourth Proportional to 1,875.28, 2,585.46 and 1,284.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,875.28 : 2,585.46 = 1,284.76 : x
2. Step 2: Convert to fraction form
   1,875.28/2,585.46 = 1,284.76/x
3. Step 3: Cross multiply
   1,875.28x = 2,585.46 × 1,284.76
4. Step 4: Simplify right side
   1,875.28x = 3,321,695.59
5. Step 5: Solve for x
   x = 3,321,695.59/1,875.28
6. Step 6: Final answer
   x = 1,771.31