Finding the Fourth Proportional to 1,146,819.34, 1,582,433.54 and 663,429.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146,819.34 : 1,582,433.54 = 663,429.46 : x
2. Step 2: Convert to fraction form
   1,146,819.34/1,582,433.54 = 663,429.46/x
3. Step 3: Cross multiply
   1,146,819.34x = 1,582,433.54 × 663,429.46
4. Step 4: Simplify right side
   1,146,819.34x = 1,049,833,028,928.09
5. Step 5: Solve for x
   x = 1,049,833,028,928.09/1,146,819.34
6. Step 6: Final answer
   x = 915,430.17