Finding the Fourth Proportional to 1,445,648.10, 2,168,472.15 and 699,152.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,648.10 : 2,168,472.15 = 699,152.10 : x
2. Step 2: Convert to fraction form
   1,445,648.10/2,168,472.15 = 699,152.10/x
3. Step 3: Cross multiply
   1,445,648.10x = 2,168,472.15 × 699,152.10
4. Step 4: Simplify right side
   1,445,648.10x = 1,516,091,857,464.02
5. Step 5: Solve for x
   x = 1,516,091,857,464.02/1,445,648.10
6. Step 6: Final answer
   x = 1,048,728.15