Finding the Fourth Proportional to 2,978.42, 4,468.08 and 898.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.42 : 4,468.08 = 898.16 : x
2. Step 2: Convert to fraction form
   2,978.42/4,468.08 = 898.16/x
3. Step 3: Cross multiply
   2,978.42x = 4,468.08 × 898.16
4. Step 4: Simplify right side
   2,978.42x = 4,013,031.76
5. Step 5: Solve for x
   x = 4,013,031.76/2,978.42
6. Step 6: Final answer
   x = 1,347.37