Finding the Fourth Proportional to 1,042.35, 1,563.72 and 348.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.35 : 1,563.72 = 348.96 : x
2. Step 2: Convert to fraction form
   1,042.35/1,563.72 = 348.96/x
3. Step 3: Cross multiply
   1,042.35x = 1,563.72 × 348.96
4. Step 4: Simplify right side
   1,042.35x = 545,667.91
5. Step 5: Solve for x
   x = 545,667.91/1,042.35
6. Step 6: Final answer
   x = 523.50