Finding the Fourth Proportional to 2,445.35, 3,670.43 and 1,214.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,445.35 : 3,670.43 = 1,214.15 : x
2. Step 2: Convert to fraction form
   2,445.35/3,670.43 = 1,214.15/x
3. Step 3: Cross multiply
   2,445.35x = 3,670.43 × 1,214.15
4. Step 4: Simplify right side
   2,445.35x = 4,456,446.51
5. Step 5: Solve for x
   x = 4,456,446.51/2,445.35
6. Step 6: Final answer
   x = 1,822.42