Finding the Fourth Proportional to 1,975.51, 2,726.20 and 1,091.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,975.51 : 2,726.20 = 1,091.31 : x
2. Step 2: Convert to fraction form
   1,975.51/2,726.20 = 1,091.31/x
3. Step 3: Cross multiply
   1,975.51x = 2,726.20 × 1,091.31
4. Step 4: Simplify right side
   1,975.51x = 2,975,126.59
5. Step 5: Solve for x
   x = 2,975,126.59/1,975.51
6. Step 6: Final answer
   x = 1,506.01