Finding the Fourth Proportional to 1,558.12, 2,148.90 and 1,404.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558.12 : 2,148.90 = 1,404.52 : x
2. Step 2: Convert to fraction form
   1,558.12/2,148.90 = 1,404.52/x
3. Step 3: Cross multiply
   1,558.12x = 2,148.90 × 1,404.52
4. Step 4: Simplify right side
   1,558.12x = 3,018,173.03
5. Step 5: Solve for x
   x = 3,018,173.03/1,558.12
6. Step 6: Final answer
   x = 1,937.06