Finding the Fourth Proportional to 1,933.86, 2,667.78 and 1,147.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,933.86 : 2,667.78 = 1,147.35 : x
2. Step 2: Convert to fraction form
   1,933.86/2,667.78 = 1,147.35/x
3. Step 3: Cross multiply
   1,933.86x = 2,667.78 × 1,147.35
4. Step 4: Simplify right side
   1,933.86x = 3,060,873.58
5. Step 5: Solve for x
   x = 3,060,873.58/1,933.86
6. Step 6: Final answer
   x = 1,582.78