Finding the Fourth Proportional to 1,296,152.10, 1,944,228.15 and 1,296,152.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,296,152.10 : 1,944,228.15 = 1,296,152.10 : x
2. Step 2: Convert to fraction form
   1,296,152.10/1,944,228.15 = 1,296,152.10/x
3. Step 3: Cross multiply
   1,296,152.10x = 1,944,228.15 × 1,296,152.10
4. Step 4: Simplify right side
   1,296,152.10x = 2,520,015,399,501.62
5. Step 5: Solve for x
   x = 2,520,015,399,501.62/1,296,152.10
6. Step 6: Final answer
   x = 1,944,228.15