Finding the Fourth Proportional to 1,628.71, 2,246.54 and 1,038.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628.71 : 2,246.54 = 1,038.83 : x
2. Step 2: Convert to fraction form
   1,628.71/2,246.54 = 1,038.83/x
3. Step 3: Cross multiply
   1,628.71x = 2,246.54 × 1,038.83
4. Step 4: Simplify right side
   1,628.71x = 2,333,756.72
5. Step 5: Solve for x
   x = 2,333,756.72/1,628.71
6. Step 6: Final answer
   x = 1,432.89