Finding the Fourth Proportional to 2,460.69, 3,384.72 and 1,985.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460.69 : 3,384.72 = 1,985.63 : x
2. Step 2: Convert to fraction form
   2,460.69/3,384.72 = 1,985.63/x
3. Step 3: Cross multiply
   2,460.69x = 3,384.72 × 1,985.63
4. Step 4: Simplify right side
   2,460.69x = 6,720,784.65
5. Step 5: Solve for x
   x = 6,720,784.65/2,460.69
6. Step 6: Final answer
   x = 2,731.26