Finding the Fourth Proportional to 1,354.63, 1,870.91 and 1,059.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.63 : 1,870.91 = 1,059.48 : x
2. Step 2: Convert to fraction form
   1,354.63/1,870.91 = 1,059.48/x
3. Step 3: Cross multiply
   1,354.63x = 1,870.91 × 1,059.48
4. Step 4: Simplify right side
   1,354.63x = 1,982,191.73
5. Step 5: Solve for x
   x = 1,982,191.73/1,354.63
6. Step 6: Final answer
   x = 1,463.27