Finding the Fourth Proportional to 1,521.72, 2,100.76 and 1,026.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.72 : 2,100.76 = 1,026.96 : x
2. Step 2: Convert to fraction form
   1,521.72/2,100.76 = 1,026.96/x
3. Step 3: Cross multiply
   1,521.72x = 2,100.76 × 1,026.96
4. Step 4: Simplify right side
   1,521.72x = 2,157,396.49
5. Step 5: Solve for x
   x = 2,157,396.49/1,521.72
6. Step 6: Final answer
   x = 1,417.74