Finding the Fourth Proportional to 2,412.34, 3,618.32 and 1,113.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.34 : 3,618.32 = 1,113.82 : x
2. Step 2: Convert to fraction form
   2,412.34/3,618.32 = 1,113.82/x
3. Step 3: Cross multiply
   2,412.34x = 3,618.32 × 1,113.82
4. Step 4: Simplify right side
   2,412.34x = 4,030,157.18
5. Step 5: Solve for x
   x = 4,030,157.18/2,412.34
6. Step 6: Final answer
   x = 1,670.64