Finding the Fourth Proportional to 1,853.72, 2,558.16 and 1,025.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,853.72 : 2,558.16 = 1,025.72 : x
2. Step 2: Convert to fraction form
   1,853.72/2,558.16 = 1,025.72/x
3. Step 3: Cross multiply
   1,853.72x = 2,558.16 × 1,025.72
4. Step 4: Simplify right side
   1,853.72x = 2,623,955.88
5. Step 5: Solve for x
   x = 2,623,955.88/1,853.72
6. Step 6: Final answer
   x = 1,415.51