Finding the Fourth Proportional to 1,685.00, 2,326.52 and 1,126.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,685.00 : 2,326.52 = 1,126.71 : x
2. Step 2: Convert to fraction form
   1,685.00/2,326.52 = 1,126.71/x
3. Step 3: Cross multiply
   1,685.00x = 2,326.52 × 1,126.71
4. Step 4: Simplify right side
   1,685.00x = 2,621,316.17
5. Step 5: Solve for x
   x = 2,621,316.17/1,685.00
6. Step 6: Final answer
   x = 1,555.67