Finding the Fourth Proportional to 1,386.98, 1,914.01 and 757.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.98 : 1,914.01 = 757.51 : x
2. Step 2: Convert to fraction form
   1,386.98/1,914.01 = 757.51/x
3. Step 3: Cross multiply
   1,386.98x = 1,914.01 × 757.51
4. Step 4: Simplify right side
   1,386.98x = 1,449,881.72
5. Step 5: Solve for x
   x = 1,449,881.72/1,386.98
6. Step 6: Final answer
   x = 1,045.35