Finding the Fourth Proportional to 2,165.59, 3,232.72 and 1,902.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165.59 : 3,232.72 = 1,902.86 : x
2. Step 2: Convert to fraction form
   2,165.59/3,232.72 = 1,902.86/x
3. Step 3: Cross multiply
   2,165.59x = 3,232.72 × 1,902.86
4. Step 4: Simplify right side
   2,165.59x = 6,151,406.07
5. Step 5: Solve for x
   x = 6,151,406.07/2,165.59
6. Step 6: Final answer
   x = 2,840.52