Finding the Fourth Proportional to 1,931.19, 2,665.02 and 1,091.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.19 : 2,665.02 = 1,091.89 : x
2. Step 2: Convert to fraction form
   1,931.19/2,665.02 = 1,091.89/x
3. Step 3: Cross multiply
   1,931.19x = 2,665.02 × 1,091.89
4. Step 4: Simplify right side
   1,931.19x = 2,909,908.69
5. Step 5: Solve for x
   x = 2,909,908.69/1,931.19
6. Step 6: Final answer
   x = 1,506.80