Finding the Fourth Proportional to 3,488.04, 5,230.72 and 1,407.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,488.04 : 5,230.72 = 1,407.34 : x
2. Step 2: Convert to fraction form
   3,488.04/5,230.72 = 1,407.34/x
3. Step 3: Cross multiply
   3,488.04x = 5,230.72 × 1,407.34
4. Step 4: Simplify right side
   3,488.04x = 7,361,401.48
5. Step 5: Solve for x
   x = 7,361,401.48/3,488.04
6. Step 6: Final answer
   x = 2,110.47