Finding the Fourth Proportional to 1,530.83, 2,111.87 and 1,019.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.83 : 2,111.87 = 1,019.93 : x
2. Step 2: Convert to fraction form
   1,530.83/2,111.87 = 1,019.93/x
3. Step 3: Cross multiply
   1,530.83x = 2,111.87 × 1,019.93
4. Step 4: Simplify right side
   1,530.83x = 2,153,951.56
5. Step 5: Solve for x
   x = 2,153,951.56/1,530.83
6. Step 6: Final answer
   x = 1,407.05