Finding the Fourth Proportional to 3,113.76, 4,667.52 and 1,380.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,113.76 : 4,667.52 = 1,380.96 : x
2. Step 2: Convert to fraction form
   3,113.76/4,667.52 = 1,380.96/x
3. Step 3: Cross multiply
   3,113.76x = 4,667.52 × 1,380.96
4. Step 4: Simplify right side
   3,113.76x = 6,445,658.42
5. Step 5: Solve for x
   x = 6,445,658.42/3,113.76
6. Step 6: Final answer
   x = 2,070.06