Finding the Fourth Proportional to 2,953.70, 4,430.71 and 1,105.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.70 : 4,430.71 = 1,105.30 : x
2. Step 2: Convert to fraction form
   2,953.70/4,430.71 = 1,105.30/x
3. Step 3: Cross multiply
   2,953.70x = 4,430.71 × 1,105.30
4. Step 4: Simplify right side
   2,953.70x = 4,897,263.76
5. Step 5: Solve for x
   x = 4,897,263.76/2,953.70
6. Step 6: Final answer
   x = 1,658.01