Finding the Fourth Proportional to 1,758.02, 2,637.72 and 1,391.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.02 : 2,637.72 = 1,391.69 : x
2. Step 2: Convert to fraction form
   1,758.02/2,637.72 = 1,391.69/x
3. Step 3: Cross multiply
   1,758.02x = 2,637.72 × 1,391.69
4. Step 4: Simplify right side
   1,758.02x = 3,670,875.36
5. Step 5: Solve for x
   x = 3,670,875.36/1,758.02
6. Step 6: Final answer
   x = 2,088.08