Finding the Fourth Proportional to 1,345.22, 1,856.06 and 1,030.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.22 : 1,856.06 = 1,030.83 : x
2. Step 2: Convert to fraction form
   1,345.22/1,856.06 = 1,030.83/x
3. Step 3: Cross multiply
   1,345.22x = 1,856.06 × 1,030.83
4. Step 4: Simplify right side
   1,345.22x = 1,913,277.18
5. Step 5: Solve for x
   x = 1,913,277.18/1,345.22
6. Step 6: Final answer
   x = 1,422.28