Finding the Fourth Proportional to 3,453.34, 5,179.92 and 988.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,453.34 : 5,179.92 = 988.10 : x
2. Step 2: Convert to fraction form
   3,453.34/5,179.92 = 988.10/x
3. Step 3: Cross multiply
   3,453.34x = 5,179.92 × 988.10
4. Step 4: Simplify right side
   3,453.34x = 5,118,278.95
5. Step 5: Solve for x
   x = 5,118,278.95/3,453.34
6. Step 6: Final answer
   x = 1,482.12