Finding the Fourth Proportional to 2,215.02, 3,056.47 and 1,375.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215.02 : 3,056.47 = 1,375.86 : x
2. Step 2: Convert to fraction form
   2,215.02/3,056.47 = 1,375.86/x
3. Step 3: Cross multiply
   2,215.02x = 3,056.47 × 1,375.86
4. Step 4: Simplify right side
   2,215.02x = 4,205,274.81
5. Step 5: Solve for x
   x = 4,205,274.81/2,215.02
6. Step 6: Final answer
   x = 1,898.53