Finding the Fourth Proportional to 1,985.52, 2,736.81 and 1,764.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.52 : 2,736.81 = 1,764.12 : x
2. Step 2: Convert to fraction form
   1,985.52/2,736.81 = 1,764.12/x
3. Step 3: Cross multiply
   1,985.52x = 2,736.81 × 1,764.12
4. Step 4: Simplify right side
   1,985.52x = 4,828,061.26
5. Step 5: Solve for x
   x = 4,828,061.26/1,985.52
6. Step 6: Final answer
   x = 2,431.64