Finding the Fourth Proportional to 2,566.51, 3,541.79 and 1,387.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,566.51 : 3,541.79 = 1,387.59 : x
2. Step 2: Convert to fraction form
   2,566.51/3,541.79 = 1,387.59/x
3. Step 3: Cross multiply
   2,566.51x = 3,541.79 × 1,387.59
4. Step 4: Simplify right side
   2,566.51x = 4,914,552.39
5. Step 5: Solve for x
   x = 4,914,552.39/2,566.51
6. Step 6: Final answer
   x = 1,914.88