Finding the Fourth Proportional to 1,937.90, 2,672.72 and 1,151.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,937.90 : 2,672.72 = 1,151.18 : x
2. Step 2: Convert to fraction form
   1,937.90/2,672.72 = 1,151.18/x
3. Step 3: Cross multiply
   1,937.90x = 2,672.72 × 1,151.18
4. Step 4: Simplify right side
   1,937.90x = 3,076,781.81
5. Step 5: Solve for x
   x = 3,076,781.81/1,937.90
6. Step 6: Final answer
   x = 1,587.69