Finding the Fourth Proportional to 2,359.95, 3,256.91 and 1,415.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.95 : 3,256.91 = 1,415.78 : x
2. Step 2: Convert to fraction form
   2,359.95/3,256.91 = 1,415.78/x
3. Step 3: Cross multiply
   2,359.95x = 3,256.91 × 1,415.78
4. Step 4: Simplify right side
   2,359.95x = 4,611,068.04
5. Step 5: Solve for x
   x = 4,611,068.04/2,359.95
6. Step 6: Final answer
   x = 1,953.88