Finding the Fourth Proportional to 1,577,747,353.89, 2,177,099,953.79 and 908,908,926.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,577,747,353.89 : 2,177,099,953.79 = 908,908,926.35 : x
2. Step 2: Convert to fraction form
   1,577,747,353.89/2,177,099,953.79 = 908,908,926.35/x
3. Step 3: Cross multiply
   1,577,747,353.89x = 2,177,099,953.79 × 908,908,926.35
4. Step 4: Simplify right side
   1,577,747,353.89x = 1,978,785,581,555,903,488
5. Step 5: Solve for x
   x = 1,978,785,581,555,903,488/1,577,747,353.89
6. Step 6: Final answer
   x = 1,254,184,059.75