Finding the Fourth Proportional to 1,191.48, 1,784.76 and 883.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.48 : 1,784.76 = 883.68 : x
2. Step 2: Convert to fraction form
   1,191.48/1,784.76 = 883.68/x
3. Step 3: Cross multiply
   1,191.48x = 1,784.76 × 883.68
4. Step 4: Simplify right side
   1,191.48x = 1,577,156.72
5. Step 5: Solve for x
   x = 1,577,156.72/1,191.48
6. Step 6: Final answer
   x = 1,323.70