Finding the Fourth Proportional to 2,191,401.36, 3,024,127.20 and 1,224,532.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191,401.36 : 3,024,127.20 = 1,224,532.56 : x
2. Step 2: Convert to fraction form
   2,191,401.36/3,024,127.20 = 1,224,532.56/x
3. Step 3: Cross multiply
   2,191,401.36x = 3,024,127.20 × 1,224,532.56
4. Step 4: Simplify right side
   2,191,401.36x = 3,703,142,221,981.63
5. Step 5: Solve for x
   x = 3,703,142,221,981.63/2,191,401.36
6. Step 6: Final answer
   x = 1,689,851.20