Finding the Fourth Proportional to 1,374.48, 1,897.96 and 1,026.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.48 : 1,897.96 = 1,026.72 : x
2. Step 2: Convert to fraction form
   1,374.48/1,897.96 = 1,026.72/x
3. Step 3: Cross multiply
   1,374.48x = 1,897.96 × 1,026.72
4. Step 4: Simplify right side
   1,374.48x = 1,948,673.49
5. Step 5: Solve for x
   x = 1,948,673.49/1,374.48
6. Step 6: Final answer
   x = 1,417.75