Finding the Fourth Proportional to 3,888.69, 5,835.06 and 2,970.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,888.69 : 5,835.06 = 2,970.15 : x
2. Step 2: Convert to fraction form
   3,888.69/5,835.06 = 2,970.15/x
3. Step 3: Cross multiply
   3,888.69x = 5,835.06 × 2,970.15
4. Step 4: Simplify right side
   3,888.69x = 17,331,003.46
5. Step 5: Solve for x
   x = 17,331,003.46/3,888.69
6. Step 6: Final answer
   x = 4,456.77