Finding the Fourth Proportional to 2,945,172.76, 4,417,267.06 and 815,472.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945,172.76 : 4,417,267.06 = 815,472.16 : x
2. Step 2: Convert to fraction form
   2,945,172.76/4,417,267.06 = 815,472.16/x
3. Step 3: Cross multiply
   2,945,172.76x = 4,417,267.06 × 815,472.16
4. Step 4: Simplify right side
   2,945,172.76x = 3,602,158,300,691.22
5. Step 5: Solve for x
   x = 3,602,158,300,691.22/2,945,172.76
6. Step 6: Final answer
   x = 1,223,071.99