Finding the Fourth Proportional to 2,945,179.32, 4,417,276.91 and 815,478.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945,179.32 : 4,417,276.91 = 815,478.72 : x
2. Step 2: Convert to fraction form
   2,945,179.32/4,417,276.91 = 815,478.72/x
3. Step 3: Cross multiply
   2,945,179.32x = 4,417,276.91 × 815,478.72
4. Step 4: Simplify right side
   2,945,179.32x = 3,602,195,316,374.96
5. Step 5: Solve for x
   x = 3,602,195,316,374.96/2,945,179.32
6. Step 6: Final answer
   x = 1,223,081.83