Finding the Fourth Proportional to 2,677.07, 4,012.93 and 1,290.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,677.07 : 4,012.93 = 1,290.01 : x
2. Step 2: Convert to fraction form
   2,677.07/4,012.93 = 1,290.01/x
3. Step 3: Cross multiply
   2,677.07x = 4,012.93 × 1,290.01
4. Step 4: Simplify right side
   2,677.07x = 5,176,693.31
5. Step 5: Solve for x
   x = 5,176,693.31/2,677.07
6. Step 6: Final answer
   x = 1,933.72