Finding the Fourth Proportional to 2,176.42, 2,998.47 and 1,786

Step by Step Solution

1. Step 1: Write the proportion equation
   2,176.42 : 2,998.47 = 1,786 : x
2. Step 2: Convert to fraction form
   2,176.42/2,998.47 = 1,786/x
3. Step 3: Cross multiply
   2,176.42x = 2,998.47 × 1,786
4. Step 4: Simplify right side
   2,176.42x = 5,355,267.42
5. Step 5: Solve for x
   x = 5,355,267.42/2,176.42
6. Step 6: Final answer
   x = 2,460.59