Finding the Fourth Proportional to 1,146,817.34, 1,582,430.78 and 663,427.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146,817.34 : 1,582,430.78 = 663,427.46 : x
2. Step 2: Convert to fraction form
   1,146,817.34/1,582,430.78 = 663,427.46/x
3. Step 3: Cross multiply
   1,146,817.34x = 1,582,430.78 × 663,427.46
4. Step 4: Simplify right side
   1,146,817.34x = 1,049,828,033,001.22
5. Step 5: Solve for x
   x = 1,049,828,033,001.22/1,146,817.34
6. Step 6: Final answer
   x = 915,427.41