Finding the Fourth Proportional to 2,113.30, 2,917.29 and 1,395.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.30 : 2,917.29 = 1,395.46 : x
2. Step 2: Convert to fraction form
   2,113.30/2,917.29 = 1,395.46/x
3. Step 3: Cross multiply
   2,113.30x = 2,917.29 × 1,395.46
4. Step 4: Simplify right side
   2,113.30x = 4,070,961.50
5. Step 5: Solve for x
   x = 4,070,961.50/2,113.30
6. Step 6: Final answer
   x = 1,926.35