Finding the Fourth Proportional to 4,602,870.21, 6,904,056.78 and 1,407,996.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,602,870.21 : 6,904,056.78 = 1,407,996.72 : x
2. Step 2: Convert to fraction form
   4,602,870.21/6,904,056.78 = 1,407,996.72/x
3. Step 3: Cross multiply
   4,602,870.21x = 6,904,056.78 × 1,407,996.72
4. Step 4: Simplify right side
   4,602,870.21x = 9,720,889,300,933.76
5. Step 5: Solve for x
   x = 9,720,889,300,933.76/4,602,870.21
6. Step 6: Final answer
   x = 2,111,919.05