Finding the Fourth Proportional to 2,087.04, 3,126.69 and 1,858.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.04 : 3,126.69 = 1,858.35 : x
2. Step 2: Convert to fraction form
   2,087.04/3,126.69 = 1,858.35/x
3. Step 3: Cross multiply
   2,087.04x = 3,126.69 × 1,858.35
4. Step 4: Simplify right side
   2,087.04x = 5,810,484.36
5. Step 5: Solve for x
   x = 5,810,484.36/2,087.04
6. Step 6: Final answer
   x = 2,784.08