Finding the Fourth Proportional to 1,853.29, 2,558.72 and 1,432.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,853.29 : 2,558.72 = 1,432.90 : x
2. Step 2: Convert to fraction form
   1,853.29/2,558.72 = 1,432.90/x
3. Step 3: Cross multiply
   1,853.29x = 2,558.72 × 1,432.90
4. Step 4: Simplify right side
   1,853.29x = 3,666,376.33
5. Step 5: Solve for x
   x = 3,666,376.33/1,853.29
6. Step 6: Final answer
   x = 1,978.31