Finding the Fourth Proportional to 1,587.94, 2,191.42 and 925.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,587.94 : 2,191.42 = 925.01 : x
2. Step 2: Convert to fraction form
   1,587.94/2,191.42 = 925.01/x
3. Step 3: Cross multiply
   1,587.94x = 2,191.42 × 925.01
4. Step 4: Simplify right side
   1,587.94x = 2,027,085.41
5. Step 5: Solve for x
   x = 2,027,085.41/1,587.94
6. Step 6: Final answer
   x = 1,276.55