Finding the Fourth Proportional to 2,184.47, 3,263.40 and 1,398.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,184.47 : 3,263.40 = 1,398.18 : x
2. Step 2: Convert to fraction form
   2,184.47/3,263.40 = 1,398.18/x
3. Step 3: Cross multiply
   2,184.47x = 3,263.40 × 1,398.18
4. Step 4: Simplify right side
   2,184.47x = 4,562,820.61
5. Step 5: Solve for x
   x = 4,562,820.61/2,184.47
6. Step 6: Final answer
   x = 2,088.76