Finding the Fourth Proportional to 2,985.42, 4,475.16 and 1,230.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,985.42 : 4,475.16 = 1,230.15 : x
2. Step 2: Convert to fraction form
   2,985.42/4,475.16 = 1,230.15/x
3. Step 3: Cross multiply
   2,985.42x = 4,475.16 × 1,230.15
4. Step 4: Simplify right side
   2,985.42x = 5,505,118.07
5. Step 5: Solve for x
   x = 5,505,118.07/2,985.42
6. Step 6: Final answer
   x = 1,844.00