Finding the Fourth Proportional to 1,677.20, 2,314.56 and 1,013.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,677.20 : 2,314.56 = 1,013.93 : x
2. Step 2: Convert to fraction form
   1,677.20/2,314.56 = 1,013.93/x
3. Step 3: Cross multiply
   1,677.20x = 2,314.56 × 1,013.93
4. Step 4: Simplify right side
   1,677.20x = 2,346,801.82
5. Step 5: Solve for x
   x = 2,346,801.82/1,677.20
6. Step 6: Final answer
   x = 1,399.24