Finding the Fourth Proportional to 1,803.51, 2,706.89 and 1,285.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803.51 : 2,706.89 = 1,285.52 : x
2. Step 2: Convert to fraction form
   1,803.51/2,706.89 = 1,285.52/x
3. Step 3: Cross multiply
   1,803.51x = 2,706.89 × 1,285.52
4. Step 4: Simplify right side
   1,803.51x = 3,479,741.27
5. Step 5: Solve for x
   x = 3,479,741.27/1,803.51
6. Step 6: Final answer
   x = 1,929.43