Finding the Fourth Proportional to 1,865.98, 2,796.54 and 1,431.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865.98 : 2,796.54 = 1,431.02 : x
2. Step 2: Convert to fraction form
   1,865.98/2,796.54 = 1,431.02/x
3. Step 3: Cross multiply
   1,865.98x = 2,796.54 × 1,431.02
4. Step 4: Simplify right side
   1,865.98x = 4,001,904.67
5. Step 5: Solve for x
   x = 4,001,904.67/1,865.98
6. Step 6: Final answer
   x = 2,144.67