Finding the Fourth Proportional to 1,625.00, 2,431.35 and 1,212.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,625.00 : 2,431.35 = 1,212.71 : x
2. Step 2: Convert to fraction form
   1,625.00/2,431.35 = 1,212.71/x
3. Step 3: Cross multiply
   1,625.00x = 2,431.35 × 1,212.71
4. Step 4: Simplify right side
   1,625.00x = 2,948,510.30
5. Step 5: Solve for x
   x = 2,948,510.30/1,625.00
6. Step 6: Final answer
   x = 1,814.47