Finding the Fourth Proportional to 2,978.04, 4,467.15 and 898.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.04 : 4,467.15 = 898.05 : x
2. Step 2: Convert to fraction form
   2,978.04/4,467.15 = 898.05/x
3. Step 3: Cross multiply
   2,978.04x = 4,467.15 × 898.05
4. Step 4: Simplify right side
   2,978.04x = 4,011,724.06
5. Step 5: Solve for x
   x = 4,011,724.06/2,978.04
6. Step 6: Final answer
   x = 1,347.10