Finding the Fourth Proportional to 1,549.07, 2,312.89 and 1,393.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,549.07 : 2,312.89 = 1,393.59 : x
2. Step 2: Convert to fraction form
   1,549.07/2,312.89 = 1,393.59/x
3. Step 3: Cross multiply
   1,549.07x = 2,312.89 × 1,393.59
4. Step 4: Simplify right side
   1,549.07x = 3,223,220.38
5. Step 5: Solve for x
   x = 3,223,220.38/1,549.07
6. Step 6: Final answer
   x = 2,080.75