Finding the Fourth Proportional to 2,126.00, 3,187.80 and 1,690.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,126.00 : 3,187.80 = 1,690.04 : x
2. Step 2: Convert to fraction form
   2,126.00/3,187.80 = 1,690.04/x
3. Step 3: Cross multiply
   2,126.00x = 3,187.80 × 1,690.04
4. Step 4: Simplify right side
   2,126.00x = 5,387,493.57
5. Step 5: Solve for x
   x = 5,387,493.57/2,126.00
6. Step 6: Final answer
   x = 2,534.10