Finding the Fourth Proportional to 1,366.59, 1,887.56 and 1,356.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.59 : 1,887.56 = 1,356.99 : x
2. Step 2: Convert to fraction form
   1,366.59/1,887.56 = 1,356.99/x
3. Step 3: Cross multiply
   1,366.59x = 1,887.56 × 1,356.99
4. Step 4: Simplify right side
   1,366.59x = 2,561,393.26
5. Step 5: Solve for x
   x = 2,561,393.26/1,366.59
6. Step 6: Final answer
   x = 1,874.30