Finding the Fourth Proportional to 2,023.31, 2,787.76 and 1,491.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,023.31 : 2,787.76 = 1,491.30 : x
2. Step 2: Convert to fraction form
   2,023.31/2,787.76 = 1,491.30/x
3. Step 3: Cross multiply
   2,023.31x = 2,787.76 × 1,491.30
4. Step 4: Simplify right side
   2,023.31x = 4,157,386.49
5. Step 5: Solve for x
   x = 4,157,386.49/2,023.31
6. Step 6: Final answer
   x = 2,054.75