Finding the Fourth Proportional to 1,820.79, 2,513.85 and 1,400.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.79 : 2,513.85 = 1,400.34 : x
2. Step 2: Convert to fraction form
   1,820.79/2,513.85 = 1,400.34/x
3. Step 3: Cross multiply
   1,820.79x = 2,513.85 × 1,400.34
4. Step 4: Simplify right side
   1,820.79x = 3,520,244.71
5. Step 5: Solve for x
   x = 3,520,244.71/1,820.79
6. Step 6: Final answer
   x = 1,933.36