Finding the Fourth Proportional to 1,820.05, 2,513.61 and 1,430.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.05 : 2,513.61 = 1,430.05 : x
2. Step 2: Convert to fraction form
   1,820.05/2,513.61 = 1,430.05/x
3. Step 3: Cross multiply
   1,820.05x = 2,513.61 × 1,430.05
4. Step 4: Simplify right side
   1,820.05x = 3,594,587.98
5. Step 5: Solve for x
   x = 3,594,587.98/1,820.05
6. Step 6: Final answer
   x = 1,974.99