Finding the Fourth Proportional to 1,358.91, 2,035.35 and 1,048.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.91 : 2,035.35 = 1,048.50 : x
2. Step 2: Convert to fraction form
   1,358.91/2,035.35 = 1,048.50/x
3. Step 3: Cross multiply
   1,358.91x = 2,035.35 × 1,048.50
4. Step 4: Simplify right side
   1,358.91x = 2,134,064.48
5. Step 5: Solve for x
   x = 2,134,064.48/1,358.91
6. Step 6: Final answer
   x = 1,570.42