Finding the Fourth Proportional to 2,303.94, 3,180.16 and 1,557.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,303.94 : 3,180.16 = 1,557.40 : x
2. Step 2: Convert to fraction form
   2,303.94/3,180.16 = 1,557.40/x
3. Step 3: Cross multiply
   2,303.94x = 3,180.16 × 1,557.40
4. Step 4: Simplify right side
   2,303.94x = 4,952,781.18
5. Step 5: Solve for x
   x = 4,952,781.18/2,303.94
6. Step 6: Final answer
   x = 2,149.70