Finding the Fourth Proportional to 760,546.34, 1,139,179.42 and 715,830.56

Step by Step Solution

1. Step 1: Write the proportion equation
   760,546.34 : 1,139,179.42 = 715,830.56 : x
2. Step 2: Convert to fraction form
   760,546.34/1,139,179.42 = 715,830.56/x
3. Step 3: Cross multiply
   760,546.34x = 1,139,179.42 × 715,830.56
4. Step 4: Simplify right side
   760,546.34x = 815,459,443,345.47
5. Step 5: Solve for x
   x = 815,459,443,345.47/760,546.34
6. Step 6: Final answer
   x = 1,072,202.19