Finding the Fourth Proportional to 1,948.86, 2,920.15 and 1,556.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.86 : 2,920.15 = 1,556.82 : x
2. Step 2: Convert to fraction form
   1,948.86/2,920.15 = 1,556.82/x
3. Step 3: Cross multiply
   1,948.86x = 2,920.15 × 1,556.82
4. Step 4: Simplify right side
   1,948.86x = 4,546,149.87
5. Step 5: Solve for x
   x = 4,546,149.87/1,948.86
6. Step 6: Final answer
   x = 2,332.72