Finding the Fourth Proportional to 3,645.62, 5,030.34 and 2,152.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645.62 : 5,030.34 = 2,152.98 : x
2. Step 2: Convert to fraction form
   3,645.62/5,030.34 = 2,152.98/x
3. Step 3: Cross multiply
   3,645.62x = 5,030.34 × 2,152.98
4. Step 4: Simplify right side
   3,645.62x = 10,830,221.41
5. Step 5: Solve for x
   x = 10,830,221.41/3,645.62
6. Step 6: Final answer
   x = 2,970.75